-
Synthesis, characterization and biological studies on Co(II), Ni(II), Cu(II) and Zn(II) complexes derived from 4-(2-amino ethyl) benzene-1,2-diol and 1,4 benzoquinone Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Thulasimani Gomathi; Somasundaram Karthik; Subramaniam Vedanayaki
A novel Schiff base ligand (L) has been synthesized using 4-(2-amino ethyl) benzene-1,2-diol (Dopamine) and 1,4 benzoquinone. Co(II), Ni(II), Cu(II) and Zn(II) complexes with this hexadentate ligand have been synthesized with metal:ligand (1:1) stoichiometry. The Schiff base ligand and its metal complexes have been characterized by elemental analysis, molar conductance, magnetic susceptibility, infrared
-
Synthesis and characterization of a new water-soluble non-cytotoxic mito-tracker capped silicon quantum dot Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Subrata Kumar Saha; Swadhin Kumar Saha; Koushik Dhara; Pabitra Chattopadhyay; Arnab Sarkar
Allyl triphenylphosphonium bromide based mito-tracker capped silicon quantum dot (Mito-SiQDs) has been synthesized through an inverse micelle process. It was then fully characterized by transmission electron microscopy, energy-dispersive X-ray spectroscopy, dynamic light scattering techniques and X-ray photoelectron spectroscopic method. Energy dispersive X-ray spectroscopy analyses of the quantum
-
Homogeneous liquid-liquid microextraction via flotation assistance for determination of trace amounts of manganese prior to inductively coupled plasma-mass spectrometry Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Mohammad Rezaee; Faezeh Khalilian; Alireza Dehgan; Parisa Tajer-Mohammad-Ghazvini
In the present study, homogeneous liquid-liquid microextraction via flotation assistance method is described for preconcentration of trace amounts of Mn(II). 1-(2-pyridylazo)-2-naphthol (PAN) is used as a ligand. The enriched analyte in the floated organic phase has been determined by inductively coupled plasma-mass spectrometry (ICP-MS). In this work, low density organic solvent is used and there
-
A molecular electron density theory study to understand the strain promoted [3+2] cycloaddition reaction of benzyl azide and cyclooctyne Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Nivedita Acharjee; Sourav Mondal
The strain promoted [3+2] cycloaddition reaction of benzyl azide with cyclooctyne has been studied within the molecular electron density theory (MEDT) at the MPWB1K/6-311G(d,p) computational level. This reaction takes place through a one-step mechanism with activation free energy of 27.1 kcal mol-1 in gas phase and 30.2 kcal mol-1 in acetonitrile. The activation enthalpies are 13.8 and 16.5 kcal mol-1
-
CT-DNA-binding and biological activity of mononuclear copper(II) complexes with imidazo-phenanthroline ligands Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Penumaka Nagababu; B Thulasiram; Jidnyasa Nagarkar; C Shobha Devi; Perala Sudheer Paul; Thatiparthi Byragi Reddy
Four imidazo-phenanthroline (IP) based ligands and its corresponding copper polypyridyl complexes have been prepared [Cu(L1-L4)2]2+ and characterized by various physicochemical techniques. Herein we are reporting the CT-DNA (calf-thymus DNA) binding & anti-cancer affinity of ligands (L1-L4) as well as complexes (C1-C4). The DNA binding affinity of synthesized C1-C4 has been carried out by using spectroscopic
-
Computational structure characterization, nonlinear optical properties and antitumor activities of Nickel(II) complexes containing alkoxy-derived dicyandiamide ligands Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Tuba Alagöz Sayın; Duran Karakaş
[Ni(dcda-O-Me)2]2+ (1), [Ni(dcda-O-Et)2]2+ (2), [Ni(dcda-O-nPr)2]2+ (3), and [Ni(dcda-O-nBu)2]2+ (4) complexes (dcda-O-R is dicyandiamide ligands with alkoxy-derived) have been optimized in the gas phase at B3LYP/LANL2DZ/6-31+G(d,p) level. Computational structure characterization has been performed from the structural parameters, IR spectra, 1H-NMR, 13C-NMR chemical shift values. It has been found
-
Synthesis, crystal structure and properties of a yttrium complex based on mixed functional ligands Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Hongzhe Jin; Xiaoming Peng; Lei Guan; Ying Wang; Xuejia Xiong
A new yttrium complex, [Y2(H2Dhbds)3(phen)2]·[Y2(H2Dhbds)2(H2Thbs)(phen)2] (1) (Na2H2Dhbds = 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt; NaH3Thbs = 2,3,5-trihydroxy-1-benzenesulfonic acid sodium salt), has been synthesized and structurally characterized. Complex 1 consists of two dinuclear structural units bridged by H2Dhbds2- and H2Thbs2- ligands, where phen molecules act as N, N-bidentate
-
Molecular interaction studies of isopropyl acetate-xylene mixture using dielectric relaxation approach Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 S S Birajdar; A R Deshmukh; D B Suryawanshi; A C Kumbharkhane
Dielectric relaxation parameters of Isopropyl acetate (IPA)-xylene mixtures with different concentrations and temperatures have been measured in the frequency range of 10 MHz to 30 GHz using time domain reflectometry technique. Static dielectric constant, relaxation time, excess permittivity, excess relaxation time, Bruggeman factor, Kirkwood correlation factor and thermodynamic parameters have been
-
An improved simple, robust, cheap and potential diagnostic device for Lead(II) Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 R D Sharma; P Chouksey; S Amlathe
Environmental pollution and its consequences are of global concern. There is an urgent need of development of simple, low-cost detection or diagnostic point of care devices to detect, analyze and determine the pollutants in various environmental, food and biological samples. Such development will be critically important for improvisation of human health and quality of life. Toxic heavy metals potential
-
Versatility of magnetic Fe3O4 supported copper nanocomposite catalyst towards reduction of carbonyl and nitro compound Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2021-01-12 Nibedita Gogoi; Chimi Rekha Gogoi; Pradip K Gogoi; Geetika Borah
Ferrite supported copper nanocomposite catalyst has been synthesized and characterized by TEM, SEM-EDS mapping, XRD, XPS and ICP-AES analysis. This nanocomposite is found to be more efficient and versatile towards carbonyl and nitro reduction under mild reaction condition with very good yield and turn over number. The catalyst is magnetically recoverable and also reusable for a minimum of four catalytic
-
Theoretical analysis of the reactivity of chloroquine and hydroxychloroquine Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Rebaz Anwar Omer; Lana O Ahmed; Matin Koparir; Pelin Koparir
Chloroquine (CQ) and Hydroxychloroquine (HCQ) have a low safety margin and its toxic effects are closely related to the ingested dose. Both drugs were tested for reactivity under different conditions but still need to be understood. A thermodynamic and kinetic study with control the electronic properties also show the reaction of the molecule. In this study, theoretical calculations have been performed
-
Volumetric and acoustic studies of glycine in aqueous solutions of sulphathiazole drug at T=(288.15 to 308.15) K Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Amalendu Pal; Surbhi Soni
The densities (ρ) and speeds of sound (u) for glycine in aqueous solutions of (0.01, 0.02, 0.03, and 0.04) mol·kg-1 sulphathiazole drug have been measured at T = (288.15, 293.15, 298.15, 303.15 and 308.15) K, using vibrating tube digital densimeter and sound analyser Anton–Paar Model DSA - 5000. The apparent molar properties like apparent molar volume (Vφ), apparent molar adiabatic compressibility
-
Selective detection of fluoride and hydrogen sulfate anions by pyrimidine-based fluorescence chemosensor Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Soumya R Thakur; R Behura; S Behera; Rajesh B Sayala; Arun K Barick; D S Ramakrishna; Bigyan R Jali
The binding and sensing abilities of pyrimidine based fluorescence chemosensor L towards different anions such as F-, Cl-, Br-, I-, NO3-, ClO4-, H2PO4- and HSO4- have been examined by fluorescence spectroscopy in DMSO-H2O (7: 3, v/v). Upon successive addition of various anions to DMSO-H2O solutions of L; quenching in emission fluorescence is observed at 480 nm. Analysis of fluorescence emission changes
-
Effects of Na2SO4 and Na3PO4 on the surface and thermodynamic properties of an anionic surfactant: bis-(2- ethyl hexyl) sodium sulfosuccinate (AOT) in aqueous solutions Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Suman Bala; Ram Partap; O P Yadav
From tensiometric measurements, critical micelle concentration (CMC), maximum surface excess concentration, minimum area per molecule at the air-liquid interface and thermodynamic parameters of micellization have been determined for an anionic surfactant: bis-(2-ethylhexyl) sodium sulfosuccinate (AOT) in aqueous medium. Effects on the above physico-chemical properties due to added electrolytes: Na2SO4
-
A sensitive electrochemical sensor for cryptotanshinone based on electrochemical reduced graphene oxide and carbon nanotube composite film modified glassy carbon electrode Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Hui Liu; Huai-yuan Han; Ming-hui Liu; Yong-fu Zhao
The electrodeposition of reduced graphene oxide and carbon nanotube (ErGO/CNTs) composite film modified electrode has been fabricated by electrochemical reduction of graphene oxide (GO) and MWNTs composite film coated on the surface of glassy carbon electrode (GCE). The results show that in 0.2 mol/L NaAc-HAc (pH= 4.5) buffer solution, cryptotanshinone produced a pair of sensitive redox peaks with
-
Theoretical and experimental studies of novel histidine derived Schiff base metal complexes, active towards biomedical and MCF 7 cell lines Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 N Sridevi; D Madheswari
Novel tri-dentate ligand-metal complexes [Mn(II), Co(II), Cu(II), Ni(II) and Zn(II) (1-5)] have been synthesized using L-histidine amino acid derived Schiff base ligand and characterized using analytical and spectral methods like UV-visible, FT-IR and ESI-MS techniques. The antioxidant studies of the Schiff base ligand and 1-5 complexes reveal that complexes exhibit significant free radical scavenging
-
Synthesis, characterization and applications of Organomecury(II) pyrrolidine-N-thiohydrazide complexes Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Rama Sharma; N K Kaushik
The complexes of organomercury(II) with pyrrolidine-N-thiohydrazide of the type RHg(L)Cl where[R=C6H5 (phenyl), p-ClC6H4 (p-chlorophenyl), p-BrC6H4 (p-bromophenyl), o-, p-HOC6H4, (o-,p-hydroxyphenyl), L = pyrrolidine-N-thiohydrazide, have been synthesized and characterized by elemental analysis, IR,1H-NMR and electronic spectral analysis. Thermogravimetric and differential thermal analytical curves
-
Crystal structure of potassium hydrogen phthalate revisited Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Bikshandarkoil R Srinivasan; Sunder N Dhuri; Kedar U Narvekar
The present study provides new insight into the structure of potassium hydrogen phthalate 1. The single crystal X-ray structure of 1 consists of a crystallographically independent potassium cation and a unique hydrogen phthalate anion. The µ4-heptadentate binding mode of the unique hydrogen phthalate ligand organizes the K+ ions into a layer resulting in a two-dimensional (2D) coordination polymer
-
Convenient synthesis and Raman spectral characterization of diammonium monomolybdate(VI) Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Sudesh M Morajkar; Bikshandarkoil R Srinivasan
A convenient and cost-effective method is reported for the preparation of gram quantities of an ammonium-rich Mo compound viz. diammonium monomolybdate(VI) (NH4)2MoO4 (1). The process involves a thorough grinding of a commercial sample of ammonium heptamolybdate tetrahydrate (NH4)6[Mo7O24]·4H2O with an excess of ammonium bicarbonate followed by thermal treatment. The facile formation of (1) is confirmed
-
A supramolecular strategy for ratiometric luminescence sensing of nitroaromatic explosives in water Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-12-03 Pranav Dave; Bhooma Bhagat; Bhavesh Agrawal; Prasenjit Maity
In the present work we have demonstrated a supramolecular approach for ratiometric luminescence sensing of nitroaromatic explosive compounds (NAEs) by employing a red luminescent Eu(III) complex and a green luminescent Pt(II) complex with in a Triton X-100 surfactant based micellar host in water. The Eu-complex gets entrapped inside micellar core whereas the Pt-C2 remains grafted on the surface of
-
Synthesis and characterization of nanoclusters: Inorganic-organic hybrid copper and cobalt containing arsenotungstates(III) with lone pair on heteroatom incorporating bidentate N-donating ligands Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Reetam Kaushik; Firasat Hussain
Three inorganic-organic hybrid nanoclusters of copper and cobalt containing arsenotungstates with lone pair on heteroatom have been synthesized under mild reactions conditions. All the compounds have been characterized by single crystal X-ray diffraction, Fourier transform infrared, UV/visible spectroscopy, thermogravimetric and field emission scanning electron microscopic (FE-SEM) analysis. The compound
-
In vitro anti-leishmanial activities and structure-activity relationship analysis of new antimony(III) complexes Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Turgay Tunç; Hatice Ertabaklar; Nurcan Karacan
New fourteen antimony(III) complexes of general formula [SbLnCl3] (where n= 1 or 2, L =2-aminopyridine, 5-methyl-2-aminopyridine, 2-aminopyrimidine, 4,6-dimethoxy-2-aminopyrimidine, 2-benzyl-2-thiopseudeourea,2-guanidinobenzimidazole, 2-amino-5-thiol-4,6-dimethoxypyrimidine, 2-amino-5-(1H-tetrazol-5-ylthio)-4,6-dimethoxypyrimidine, N-2-pyrimidine, 2-piperidinecarboxamide, N-2-pyrimidine, 2-pyrrolidinecarboxamide
-
Nickel(II) complexes of m-ethylphenylxanthate with nitrogen donors and their biological screening Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Shivangi Sharma; Renu Sachar; G D Bajju; Vikas Sharma
A series of five adducts of m-ethylphenylxanthate of nickel(II) [(m-C2H5C6H4OCS2)2Ni] with nitrogen donors have been synthesized in 1:2 molar ratio by the reaction of aqueous solution of NiCl2.6H2O with aqueous solution of sodium salt of m-ethylphenylxanthate. These metal complexes are reacted with nitrogen donors to give donor stabilized complex, [(m-C2H5C6H4OCS2)2(L)2Ni] where, L= 2-, 3-, 4-ethylpyridine
-
Determination of densities, apparent molar volume and apparent molar volume of transfer of some R4NI salt solutions in NMF-DMSO mixtures using magnetic float densitometer and then to study of ionic Interaction at 303.15 K Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 R N Pathak; Narendra Singh; Rikkam Devi
Binary solvent mixtures of different (%) compositions have been prepared at 303.15 K using tetra alkyl ammonium iodides (R4NI) of 0.02 M to 0.14 M to investigate inter ionic interaction, ion-ion and ion solvent interactions in NMF-DMSO solvent mixture containing large cations of tetra alkyl ammonium iodides (R4NI). The densities (ρ0) of binary solvent mixtures and salt solutions have been measured
-
Photoluminescence properties of Eu3+-activated Y1.50Sc0.50O3 phosphors Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Erkul Karacaoglu; Esra Öztürk
In this research, Eu3+ activated and Dy3+-co-doped Y2O3 based phosphors have been synthesized by solid-state reaction method under open atmosphere. The host lattice is composed of 0.25 moles of Sc2O3 which is added to phosphor composition. Thus, Sc3+ substitution of Y3+ ions is implemented to form Y1.40Sc0.50O3 host lattice. The thermal analysis (DTA/TG) have been carried out from 50 °C to 1400 °C
-
Study of spectrophotometric characteristics of the charge transfer complexation of epsilon aminocaproic acid with bromanil Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Fang Tian; Sheng-Yun Li
A spectrophotometric method has been studied for the determination of epsilon aminocaproic acid (EACA) through charge transfer (CT) complexation with bromanil (TBBQ). The CT reaction has been carried out at 70 °C of the water bath for 30 min in the borax buffer solution. The spectrum obtained for EACA/TBBQ system shows the maximum absorption band at wavelength of 352 nm. The CT complex is also confirmed
-
3,6-Di(pyridin-2-yl)-1,2,4,5-s-tetrazine capped-gold nanoparticles as an efficient antibacterialagent against gram-positive Bacillus subtilis Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Sutapa Joardar; Shounak Ray
In current work, we present 3,6-di(pyridin-2-yl)-1,2,4,5-s-tetrazine (pytz) capped gold nanoparticles (TzAuNPs) as an potent antibacterial agent against Gram-positive bacteria. The antibacterial properties of TzAuNPs have been studied using Gram-positive Bacillus subtilis (ATCC 11774) by the plate count method and TzAuNPs is found to be highly effective against the strain. Furthermore, TzAuNPs also
-
Analysis of accuracy of burette in determination of surface tension of liquids and study of its variation with detachment time and inclination angle Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Priyanka Thakral; Mukund Sharma; Diksha Dewan; Sakshi Sharma
A simple laboratory experiment to measure the surface tension of liquids has been proposed in this work, which is well suited for any undergraduate laboratory demonstration. Burette with modified Tate’s law has been found to return surface tension values as good as those obtained using Traube’s stalagmometer. Experimental data and error analysis show similar result accuracy. Also, a comparative study
-
Investigation of molecular docking, biological and DFT studies of Schiff base transition metal complexes Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 A Sudha; S J Askar Ali
The Schiff base ligand obtained from the reaction of 2-amino-3-hydroxypyridine, 2,4,6-trihydroxy benzaldehyde is described. Cu(II), Ni(II), Co(II), and Zn(II)complexes have been analyzed by various spectroscopic techniques like FT-IR, UV-visible, mass spectrometry and NMR. Based on spectral data octahedral geometry has been assigned to the complexes. In the present study the prepared Schiff base ligand
-
Molecular interactions studies of doxycycline hyclate in water, aqueous L-phenylalanine and glycyl glycine at different temperatures by using volumetric, ultrasonic and viscometric parameters Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-11-02 Shashi Kant Sharma; Poonam
The density, sound velocity and viscosity of doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine have been determined at different temperatures (305.15, 310.15, 315.15 and 320.15) K. The calculated values of partial molar volume (V), standard partial molar volume of transfer (Δtr,V), partial molar adiabatic compressibility (κ,s) and partial molar
-
Theoretical studies on the structural, vibrational, conformational analysis and nonlinear optic property of 4-(methoxycarbonyl)-phenylboronic acid Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Güventürk Uğurlu; Murat Beytur
In this paper, the structural, electronic, non-linear optical (NLO) properties and vibrational frequencies of 4-(methoxycarbonyl)-phenylboronic acid have been examined theoretically using ab initio Hartree-Fock (HF) and Density Functional Theory (DFT/B3LYP) methods applying the standard 6-311++G(d,p) basis set. 1H- and 13C NMR chemical shifts are calculated by employing the direct implementation of
-
In silico de novo design of NNRTIs of HIV-1: Functional group based computational molecular modelling approach Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 U Raghuvanshi; N S Sapre
Seven novel lead compounds, acting as NNRTIs of HIV-1, are extracted from a database of, in silico de novo designed, 500 compounds. Functional group based computational molecular modelling techniques are used for such design of Acylthiocarbamate derivatives. Effect of structural characteristics on the antiviral activity of these derivatives has also been studied. Statistical regression techniques namely
-
Studies on coordination environment of transition metal chloride anionic speciation of N, N-disulfodiisopropylammonium ionic salts and assessment of their Brønsted-Lewis acidic properties Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Pinky Gogoi; Kabita Boruah; Ruli Borah
Four ionic salts of N, N-disulfodiisopropylammonium cation with complex anionic speciation of metal chlorides such as [FeCl4]-, [NiCl4]2-, [Zn2Cl6]2-/[Zn4Cl10]2-, [CoCl4]2-/[CoCl3]- have been synthesized and characterized with FTIR, NMR, TGA, Raman and electronic spectra. Comparative Brønsted and Lewis acidic strength of the salts have been assessed for catalytic uses in organic reactions via UV-visible
-
A kinetic and mechanistic study of oxidation of L-lysine by diperiodatonickelate(IV) in aqueous alkaline medium Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 T Basavaraj; Shivamurthi A. Chimatadar; Sharanappa T. Nandibewoor
The kinetics of oxidation of L-lysine by diperiodatonickelate(IV) (DPN) in aqueous alkaline medium at a constant ionic strength of 0.60 mol dm-3 has been studied spectrophotometrically. The reaction shows first order in diperiodatonickelate(IV) and less than unit order dependence each in lysine and OH- ion concentrations. The addition of periodate retards the reaction, while the product nickel(II)
-
Kinetic modelling and simulation studies for the esterification process with Amberlyst 16 resin Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Mallaiah Mekala; Venkateswarlu Chimmiri
Methyl acetate has been synthesized by the reaction between acetic acid and methanol in an experimental batch reactor. The reaction has been carried out homogeneously without using any catalyst and heterogeneously by using Amberlyst 16 resin catalyst. The reaction is performed using different temperatures in the range of 318.15-333.15 K. The reaction catalyzed by Amberlyst 16 is found faster than the
-
Synthesis of metal oxide nanoparticles - A general overview Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Debabrata Pal
Metal oxide nanoparticles (MONPs) are the most important class of nanoparticles regarding the volume of production and application potential in diversified fields. The research domain of MONPs is vastly expanding and rationally million of bytes are utilized to cover the literature each day around the globe. They can be synthesized in a variety of processes and the MONPs produced through different processes
-
Experimental and theoretical studies of transport and optical properties of binary mixtures of acetonitrile with some alkyl methacrylates at temperatures from 298.15 to 318.15 K Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 P Droliya; D Chand; A K Nain
The viscosities, η and refractive indices, nD of pure acetonitrile, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate and of their binary mixtures with acetonitrile as the common component, covering the entire composition range has been measured at temperatures (298.15, 303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure. Using these experimental data, the deviations in viscosity
-
Crystal structure, Hirshfeld surface analysis, DFT and TD-DFT studies of nickel(II) monohydrate complex coordinated by bis (5-bromo-1-formylphenolate) moiety and two water molecules Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 I Rama; A Subashini; R Selvameena
In the title compound [Ni(C7H5O2Br)2(H2O)2]H2O, the Ni atom adopts distorted octahedral geometry in which the bidentate ligand acts as O,O’ donor defining an equatorial plane and water molecules occupy the axial positions. It is a mononuclear compound. This compound is crystallized on the monoclinic system, space group P21/c with the unit cell parameters a = 18.4561(8) Å, b = 7.3442(4) Å, c = 14.5786(8)Å
-
Loess particles loaded petaloid Bi2S3 nanowires for highly efficient photodegradation of dyesunder sunlight Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Haiyan Yan; Qianqian Wang; Yufeng He; Ya Shen; Pengfei Song; Rongmin Wang
In this paper, using loess particles (LoP), a kind of extremely common and inexpensive natural silicate particles with metastable structure, as inorganic carrier, the petaloid Bi2S3nanowires have been loaded by in-situ depositing, which afforded loess particles loaded petaloid Bi2S3nanowires (PBiNw@LoP) with one-step hydrothermal procedure. Scanning electron microscopy, Fourier transform infrared spectroscopy
-
Guests mediated supramolecule-modified gold nanoparticles network for mimic enzyme application Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-10-12 Jialin Zhao; Zhijuan Niu; Xing Huang; Xiaojun Hu; Shouwei Gao; Kwangnak Koh; Hongxia Chen
Supramolecules mediated porous metal nanostructures are meaningful materials because of their specific properties and wide range of applications. Here, we describe a general and simple strategy for building Au-networks based on the guest-induced 3D assembly of Au nanoparticles (Au-NPs) resulted in host-guest interaction resolved sulfonatocalix[4]arene (pSC4)-modified Au-NPs aggregate. The diverse guest
-
Breast cancer nutritional chemistry cachexia oncology – A clinical trials perspective Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Savitha Swaminathan; Yamuna Ramalingam; Balu Ranganathan; Jolius Gimbun; S Muthumariappan; U Mani
Breast cancer is the second largest killer disease among women globally. Annually approximately 48,000 women die of breast cancer. Breast cancer patients are at high risk of developing malnutrition from the underlying disease as well as from various drug regimen, chemotherapy and or radiotherapy interventions. As we work for personalized medicine for breast cancer, a personalized nutrition for breast
-
Design, synthesis and characterisation of a disulphide appended sugar bis-triazole Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 P V Bhavya; P Punithavathi; Mohan T Das
In this work, sugar-based bis-triazole appended disulfide was synthesized, characterized and the molecular structure is confirmed through different spectral techniques like NMR (1H, 13C), FTIR and mass spectroscopy. Since the target molecule possesses suitable core moiety, we anticipate that the synthesized sugar-based bis-triazole appended disulfide derivative can act as a sensor.
-
Efficient soluble and polymer cross linked insoluble poly-4-vinyl pyridine metal(V) chloride catalysts for esterification of butanol with acetic acid Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Eagambaram Murugan; Palaniappan Arunachalam; J Nimita Jebaranjitham
New soluble and insoluble Ta, Mo and Sb pentachloride complex catalysts have been prepared using pyridine and polymer supported cross-linked (poly-4-vinyl pyridine) beads (PSCPVP), respectively. The prepared catalysts are characterized with FTIR, SEM, EDAX, CHN and TGA. The catalytic activities of these catalysts have been examined for esterification of acetic acid with butanol through gas chromatographic
-
Electrochemical analysis of nitrite contamination in water using SnTe@GO modified glassy carbon electrode Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 E Murugan; A Dhamodharan; A Poongan; K Kalpana
An electrochemically active tin telluride (SnTe) decorated graphene oxide (GO) (SnTe@GO) nanocomposite has been synthesized through simple experimental method and used the same for surface modification of glassy carbon electrode, thus developed a new efficient SnTe@GO/GCE which in turn has been demonstrated as a sensor for identification and quantification of nitrite species in water samples. Common
-
Optoelectronic properties of all-Inorganic lead-free halide double perovskites (RbxCs1-x)2AgBiBr6 for solar cell applications Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 R Radhakrishnan
Solar cells based on lead-free double perovskites as absorber layer is an environment friendly, stable alternative for the conventional lead based hybrid halide perovskites. A comprehensive theoretical study on the optical and electronic properties of all-inorganic double perovskite with A2BB’X6 stoichiometry is done using density functional theory. Doping studies on (RbxCs1-x )2AgBiBr6 perovskite
-
Template-free synthesis of hierarchical mesoporous carbon: Based on functional coal tar pitches with carboxylation and diketone structures Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Haiyang Wang; Hongzhe Zhu; Debang Qi; Shoukai Wang; Kaihua Shen
An efficient and easy template-free method for the preparation of hierarchical porous carbons (HPCs) has been developed using low-priced coal tar pitch (CP) as the starting material. Application of the diketone (-COCO-) radical provides a carbonyl methylene group for polycyclic aromatic hydrocarbons by condensation and produces an effective micro-mesoporous network with a high specific surface area
-
Benzimidazolium picrate single crystal: Synthesis, growth, characterization and their biological activity Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Ganesan Vadivelan; Grahandurai Gohulavani; Munusamy Saravanabhavan; Venkatesan Murugesan; Marimuthu Sekar
Knowledge on charge-transfer complexes of drugs is important to understand the drug-receptor binding mechanism. Here, we have been synthesized the organic charge transfer complex of Benzimidazolium picrate (BP) and confirmed its molecular structure and carbon skeleton by 1H and 13C NMR spectral analysis. Asymmetric unit of BP consists of one benzimidazolium cation and a monovalent anion of picric acid
-
Preparation and analysis of sodium carboxymethyl cellulose and its effect on xerophthalmia Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Yingshuang Wang; Chu-Yan Huang; Rongrong Fu; Haiying Zhang
carboxymethyl cellulose (CMC) has been effectively synthesized with high yield and purity. With the prolongation of time after model establishment, the values of Schirmer Ⅰ test (S Ⅰ t) and breakup time of tear film gradually decreased. The α-MSH and CMC alone could ameliorate corneal tissue damage and corneal morphological abnormalities in the dry eye to some extent. However, compared with monotherapy
-
Synthesis of ester derivatives of Rhein and their in vitro antitumor activities on cervical cancer cells (Hela) Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Zhi Wen Zhu; Mei Yang; Jin Ping Zhang
Taking Rhein as the lead compound, ten esters of rhein were synthesized by esterification. For synthesis of smaller steric hindrance alcohols, SOCl2 was used as a catalyst to synthesize methyl, ethyl and butyl esters. For lager steric hindrance alcohols, dicyclohexyl carbodiimide (DCC) was used as dehydrating agent, and 4-dimethylaminopyridine (DMAP) was used as the catalyst to synthesize isopropyl
-
Tetrandrine derivatives IVa-IVd: Structural analysis and their inhibition rate against protein tyrosine kinase, and HL60 & A549 cancer cell lines Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Chen Chen; Ye Lu
Four tetrandrine (TET) derivatives (IVa-IVd) have been synthesized by Suzuki reaction of boronic acid derivatives and 5-bromo-tetrandrine obtained by bromination using tetrandrine as the starting material. The structures are analyzed by 1H NMR, 13C NMR and ESI-MS. The inhibition activities of IVa-IVd against HL60 and A549 cancer cell lines have been investigated by CCK-8 assay. The compounds having
-
Selective adsorption of bovine hemoglobin by Ni2+-functionalized silica nanoparticles Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Rao Fu; Shan Jiang
In this work, we have used Stöber method to prepare 200 nm SiO2 particles and then immobilized metal affinity ligand iminodiacetic acid (IDA) and charged them with Ni2+ ions. The particles show high absorption efficiency to bovine hemoglobin and the maximum extraction amounts reached 43.4 mg/g. The particles have been applied to separate a model protein mixture of bovine hemoglobin (BHb) and bovine
-
Fabrication of polycaprolactone/β-tricalciumphosphate based nano scaffolds using electrospinning method for biomedical applications Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 K Seethalakshmi; M Kaviya; Sundara M Ganeasan; B Venkatachalapathy; KM Veerabadran; TM Sridhar
In this study, we have focused on preparation, fabrication and characterization of polycaprolactone and beta tricalcium phosphate (PCL/β-TCP) composite scaffolds that are used for bone tissue engineering applications. The electrospun composites have been characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM).
-
Modification of glassy carbon electrode with trigona carbon nanopetals/ferrocene/gold nanoparticles nanocomposite for electrochemical detection of dopamine Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 E Murugan; S Saranya; A Aswini
In this study, we have synthesized a composite using carbon material derived from bio-inspired onion peel morphology like 2D trigona carbon nano petals (TCP) incorporated with ferrocene (FC). The FC is added with the purpose of improving the electrochemical behaviour of TCP. Further, to increase the number of electrochemically active sites in the composite, gold nanoparticles (AuNPs) were again decorated
-
Mechanism of photoinduced charge transfer at MEH-PPV and titanium dioxide nanoparticle interface Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Jaya Seeli Shankar; Sangeetha Ashok Kumar; Bhuvana K Periyasami; Sanjay K Nayak
In this study, we investigated mechanisms of photoinduced electron transfer from a conjugated polymer (poly(2-methoxy-5-(2-ethylhexyloxy) 1,4-phenylenevinylene (MEH-PPV) to titanium dioxide (TiO2) nanoparticles (acceptor) through steady-state photoluminescence (PL) spectroscopy. Since mixed phase TiO2 has better photocatalytic compared to single phase, it is an efficient charge separation process during
-
Solanum melongena leaf extract based zinc oxide nanoparticles synthesis using green chemistry concepts Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 A Nagarajan; V Sethuraman; V Balasubramani; TM Sridhar; R Sasikumar; G Vimala
Nanoparticles of zinc oxide (ZnO NPs) have been synthesised from naturally available Eggplant, Solanum melongena leaf extract. The methodology has been optimized to obtain ZnO NPs which as are characterized using UV-Visible, X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and FT-Infra red (FTIR) tools to confirm their nano dimensions and chemical properties. The SPR band is obtained at
-
Novel homogeneous catalyst assisted sonocatalytic degradation of dye Direct Blue 71 Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 R Bhavani; A Sivasamy
Industrial effluents, particularly from dye industry, is one of the major causes of serious concern as it contaminates the environmental water resources and affect human health. Treatment of such contaminants is a challenging area of interest to researchers. In this context, here, we have explored degradation and mineralization of Direct Blue (DB71) dye in aqueous solution by means of ultrasound irradiation
-
Degradation of Orange G and Malachite green dyes under visible light irradiation: Double layered core-shell nanoparticle as an efficient photocatalyst Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-26 Suganya GA Josephine; A Sivasamy
Core-shell nanomaterials have emerged as a frontier area of focus in materials chemistry and catalysis. Here, we have explored the photocatalyst potential of a double layered core-shell material comprising a rare earth material as core and silica, zinc oxide as the subsequent shell materials. The prepared core-shell has average particle size of 40-60 nm, and the material has been characterized by FTIR
-
Synthesis, characterization and photocatalytic dye degradation studies of novel defect pyrochlore, KHf0.5Te1.5O6 Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-01 M. Sudheera; G. Ravinder; G. Ravi; P. Venkataswamy; K. Vaishnavi; N. Chittibabu; M. Vithal
In this study, KHf0.5Te1.5O6 (KHTO) semiconductor has been synthesized by the solid-state method. The synthesized material is characterized using X-ray diffraction, Fourier transform infrared spectroscopy, UV-visible diffuse reflectance spectroscopy, field emission-scanning electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy and N2 adsorption/desorption measurements
-
In vitro incompatibility study of Valsartan and Hydrochlorothiazide by spectroscopic and RP-HPLC Method Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-01 M Manoj Kumar; D Himaja; Sandip Sen
The present investigation is based on an in vitro incompatibility study between valsartan and hydrochlorothiazide by spectroscopic and reverse-phase high-pressure liquid chromatography (RP-HPLC) methods. The method has been developed and validated by ultraviolet (UV) spectroscopic method using methanol and water (1:4) as the solvent. The RP-HPLC study has been carried out using acetonitrile, methanol
-
Onion based zinc oxide nanoparticles ability as electrochemical sensor Indian J. Chem. Sect. A (IF 0.489) Pub Date : 2020-09-01 Lokesh S Kumar; P Indirajith; Kishore K.R. Tetala
This work describes the preparation of zinc oxide nanoparticles (ZnO NP) from onion extract through a combination of microwave irradiation and muffle furnace in less than 2 h. Characterization with UV-visible, FTIR, and XRD has confirmed successful formation of nanoparticles. TEM analysis displays the nanoparticles to be spherical shaped with an average size of 6.4 nm. The developed ZnO NP film displays
Contents have been reproduced by permission of the publishers.