A series of antiparallel‐stranded and parallel‐stranded DNA duplexes containing hetero base pairs of the artificial nucleobases 6‐(1 H ‐pyrazol‐1‐yl)‐9 H‐ purine (6PP), 1‐deaza‐6PP ( 1D 6PP), 7‐deaza‐6PP ( 7D 6PP), and 1,7‐dideaza‐6PP ( 1,7D 6PP) were investigated with respect to their ability to form silver(I)‐mediated base pairs. A close examination of the duplex melting temperatures in the absence

A novel Zn(II) mixed‐ligand complex, Zn(nba) 2 (meim) 2 ( 1 ), synthesized from Zn(NO 3 ) 2 .6H 2 O, nitrobenzoic acid (Hnba) and 1‐methylimidazole (meim) is reported. The complex was characterized by elemental analysis, FT‐IR, powder and single crystal X‐ray crystallography and TGA/DSC. Complex 1 exhibits a tetrahedral geometry for Zn(II), which is coordinated to two carboxylate oxygen atoms from

The reaction of 5‐Ph 2 P‐Ace‐6‐Li (prepared in situ from 6‐Ph 2 P‐Ace‐5‐Br and n ‐BuLi in the presence of TMEDA) with B(OMe) 3 and B(O i ‐Pr) 3 , respectively, provided the boronic esters 5‐Ph 2 P‐Ace‐6‐B(OR) 2 ( 1a , R = Me; 1b , R = i ‐Pr; Ace = acenaphthyl). Hydrolysis of the crude reaction mixture of 1a , afforded the boronic acid 5‐Ph 2 P‐Ace‐6‐B(OH) 2 ( 2 ), which crystallizes as hydrogen bonded

Abstract. Reaction of [Ru(acac)2(MeCN)2], acac‐ = acetylacetonate, with N‐phenylcamphoriminoquinone (pciq) or the new N‐(2‐thiomethylphenyl)‐camphoriminoquinone (tciq) produces complexes [Ru(acac)2(pciq)] and [Ru(acac)2(tciq)] with N,O or N,S coordination and E or Z configuration at the C=N bond, respectively. Oxidation state assignments in comparison with classical iminoquinone ligands are based on

The syntheses and characterization of uranyl complexes containing the OP(Se)(OEt) 2 ‐ or OP(Te)(OEt) 2 ‐ ligands are described. The U(VI) complexes UO 2 (OP(Se)(OEt) 2 ) 2 (OP(NMe 2 ) 3 ) 2 (1) and UO 2 (OP(Te)(OEt) 2 ) 2 (OP(NMe 2 ) 3 ) 2 (4) were prepared by the reaction of UO 2 (NO 3 ) 2 (OP(NMe 2 ) 3 ) 2 with the corresponding NaOP(E)(OEt) 2 salt in THF (E = Se, Te). The complexes UO 2 (OP(Se)(OEt)

Treatment of o ‐(diphenylphosphino)aniline with 3‑formylacetylacetone led to the formation of the ketimine type Schiff base 3‐(( o ‐diphenylphosphino‐phenylamino)‐methylene)‐pentane‐2,4‐dione ( o ‑PPh 2 ‐C 6 H 4 ‐NH‐CH=C(COCH 3 ) 2 , HL). Complexes [ML 2 ] (M = Fe, Co, Ni, Cu) were obtained from the reaction of HL with the corresponding metal acetate or acetylacetonate derivatives. The [ML 2 ] complexes

Yellow single‐crystals of Na 2 [Ir(OH) 6 ] were obtained by hydrothermal synthesis in 20 m sodium hydroxide solution at 393 K within 5 hours. X‐ray diffraction on a single‐crystal revealed the trigonal space group [[EQUATION]] (no. 148) with the lattice parameter a = 582.76(3) pm and c = 1399.30(8) pm at 100(1) K. Na 2 [Ir(OH) 6 ] crystallizes in a hettotype of Mg(OH) 2 (brucite) and is isostructural

Cadmium carbodiimide, CdNCN, was synthesized by a solid‐state metathesis reaction between CdCl2 and Na2NCN in a 1:1 molar ratio at 500 °C, and its crystal structure was redetermined from Rietveld refinement of powder X‐ray data, aiming to clarify prior uncertainties as regards the carbodiimide vs. cyanamide shape. CdNCN adopts the centrosymmetric space group R–3m and is isostructural with MgNCN, the

Mesoxalate ligand (H 2 mesox) 2‐ , the conjugate base of the mesoxalic acid (2,2’‐dihydroxyl‐malonic acid) reacts with cobalt (II) ions to form the 1‐D coordination polymer {[Co(H 2 mesox)(H 2 O) 2 ] ∙H 2 O} n . This compound displays a structure based on homochiral polymeric chains which stack together in an AABB fashion through hydrogen bonding by both coordination and crystallisation water molecules

Abstract: Rhodium(III) and ruthenium(II) complexes supported by a pentadentate tetrapodal ( pentaPod ) phosphine ligand are synthesized through abstraction of one chloride ligand from initially obtained κ 4 ‐ pentaPod coordinated dichloro complexes [MCl 2 ( κ 4 ‑P 2 Me PP 2 Ph ] +/0 (M = Rh(III), Ru(II)) with alkali salts of weakly coordinating anions. While for the rhodium κ 5 ‐ pentaPod complex the

A rare fluorescent nanoscale titanium‐based metal‐organic framework (MOF) material, Ti6(μ3‐O)6(μ2‐OH)6(BTB)2(DMF)2 (ZSTU‐2) was synthesized and realized for highly sensitive sensing of nitro‐aromatic compounds. ZSTU‐2 exhibited high fluorescence intensity with blue luminescence and stability in water. ZSTU‐2 exhibited significant luminescent quenching effects upon the addition of nitro‐aromatic compounds

Preparation of hydroxylamine via hydrolysis of cyclohexanone oxime was studied over porous SiO2 supported acid ionic liquid catalyst. The catalyst [SPIPTES]CF3SO3 @SiO2 was prepared through sol‐gel method and characterized by SEM, IR and TG, etc. Various parameters such as reaction temperature and time, catalyst amount were investigated systematically. Preliminary study on the structure of supported

The Schiff‐base condensation of salicylaldehyde and 4‐aminobutanehydrazide hydrochloride leads to the hydrazone‐based ligand H 2 salhyab containing an amino side chain. The reaction of H 2 salhyab·HCl with bis(acetylacetonato)dioxidomolybdenum(VI) leads to the formation of [MoO 2 (salhycab)(MeOH)] (H 2 salhycab = 2‐((pyrrolidine‐2‐ylidenehydrazineylidene)methyl)phenol) whereby the amino side chain

To improve UiO‐66’s adsorption capacity towards methylene blue (MB) of low concentrations, an efficient modulator, butyric acid, has been successfully employed to regulate its defect levels using a modulation method. The butyric acid regulated UiO‐66 has higher degree (6.08%) of defects, larger mass loss (8.63%) from 248 to 440 o C, lower BDC 2‐ /Zr molar ratios (0.86) and higher specific surface area

Biomimic of the active site of [FeFe]‐hydrogenase containing bicyclic dithiols as bridging linker has been synthesized and characterized using different spectroscopic methods. The influence of this linker on the redox properties and the catalytic behavior of the resulted binuclear complex was investigated using cyclic voltammetry, showing that it can catalyze the reduction of protons to H2 in the presence

Selective alkaline and earth alkaline metal ion encapsulation by two different Lehn‐type cryptands, noted as [3.2.1] and [4.1.1], was predicted and between them compared on the DFT (B3LYP/LANL2DZp) basis set. Since these cryptands are isomers to the well‐known [2.2.2] cryptand, the cation encapsulation selectivity of all three cages were compared. The ion selectivity and ability of the host to adjust

Two Co(II) and Cu(II) complexes, {[Co(Htpim) 2 (H 2 O) 2 ](IPA‐OH)} n ( 1 ) and {[Cu(Htpim) 2 (H 2 O) 2 ](IPA‐OH)} n ( 2 ) (Htpim = 2,4,5‐tri(4‐pyridyl)‐imidazole, and H 2 IPA‐OH = 5‐hydroxyisophthalic acid), have been solvothermally synthesized by mixed‐ligand strategy and structurally characterized by elemental analyses, IR spectra and X‐ray diffraction (XRD) analyses. Single crystal XRD analyses indicate

Post‐processing methods have been widely reported as an effective method to purify and functionalize the surface of carbon nanotubes (CNTs). We used a new Co‐based coordination polymer (CP) as a catalyst precursor to synthesize multi‐walled CNTs (MWCNTs) by the chemical vapor deposition (CVD) method, and examined the use of acidification, carbonization and functionalization treatments in an attempt

A synthetic approach to synthesize the cationic trinuclear cluster with [Co 3 (μ 3 ‐O)(μ‐OH)] core has been reported. A comparative study with the closely relevant polynuclear cluster containing [Co 4 (μ 3 ‐O) 4 ] active core has also been carried out along with a plausible pathway for these two clusters. The minor spectroscopic and electrochemical changes observed for the cores are quite significant

Addition of the potassium dichalcogenidodiphenylphosphinate salts, KE 2 PPh 2 (E = S, Se), to either the THF solvate of vanadium(III) chloride or unsolvated chromium(III) chloride results in rapid ligand substitution and the formation of a series of closely‐related trivalent, neutral mononuclear complexes, M(E 2 PPh 2 ) 3 (M = V, Cr; E = S, Se), isolated in modest to good yield. The metal dichalcogenidophosphinate

Among homologous series of metal oxides, Andersson‐Magnéli phases TinO2n‐1 (n = 4 – 10) have attracted renewed scientific attention because of their behaviour in electric conductivity and chemical/thermal stability. Various applications have also been reported for the phases with different values of n, or slightly reduced rutile (TiO2). The characteristic properties of these materials depend strongly

A series of new alkali‐metal‐based coordination polymers, [Li(H 2 IMDC)(H 2 O)] n ( 1 ), [Na 2 (H 2 IMDC) 2 (H 3 IMDC) 2 (H 2 O) 4 ] n ( 2 ), and [K(H 2 IMDC)(H 2 O)] n ( 3 ), have been constructed under solvothermal conditions by using imidazole‐4,5‐dicarboxylic acid (H 3 IMDC) as ligand. The structure of the complexes has been determined by single‐crystal X‐ray diffraction and further characterized

This work uses the change of elongation with temperature in a composite solid propellant to assess its shelf life for the air and nitrogen atmospheres applying two methods for the temperature parameterization of the measured quantity, the Arrhenius and Berthelot equation. The samples of the composite propellant contain aluminum (Al), ammonium perchlorate (AP), and hydroxyl‐terminated polybutadiene

Abstract. Neutral complexes [M II (C 5 Me 5 )(Q 2‐ )(NO + )] with M = Ru or Os and the catecholates Q 2‐ with 3,5‐di‐ tert ‐butyl (dtbc) or 3,4,5,6‐tetrachloro substituents (tcc) were identified with the oxidation and charge states indicated. Reversible electron transfer was analyzed spectroelectrochemically (EPR, UV‐vis‐NIR, IR), supported by DFT calculations. Reversible reduction was observed for

Explosives containing metals and the other solid particulates have wide applications in air‐blast and underwater explosives. Due to the non‐ideal behavior of these explosives, available complex computer codes and empirical methods cannot usually provide a reliable estimation of their detonation velocity. Large experimental data of detonation velocity (392 experimental data) corresponding various types

A mixed‐valent, one‐dimensional Cu(I/II) coordination polymer with the formula [Cu II {Cu I ) 3 (Hmpba)(mpba) 2 }DMF]·~3DMF. was obtained with the bifunctional ligand 4‐(3,5‐dimethyl‐1 H ‐pyrazol‐4‐yl)benzoic acid (H 2 mpba) in N,N ‐dimethylformamide (DMF) via solvothermal reaction. The compound exhibits a trinuclear {Cu I 3 (Hmpba)(mpba) 2 } 2– metallo‐linker with the softer Cu(I) linearly‐coordinated

A new MOF (metal‐organic framework), i.e. [Sc( dF ‐BTC) 6/6 ]×solvent with dF ‐BTC 3‐ = 2,4‐difluoro‐1,3,5‐benzene‐tricarboxylate, termed UoC‐4 (UoC = University of Cologne), was synthesized by solvothermal reaction in an ethanol/water solvent mixture. The crystal structure of UoC‐4 was solved and refined from X‐ray single crystal data ( I 4 1 / amd , Z = 8). In the crystal structure each of the three

We present the synthesis and characterization of (15‐crown‐5)BiI 3 ( 1 ) and (15‐crown‐5)BiI 3 ∙0.5TIE ( 2 ), a halogen bonded adduct with tetraiodoethylene (TIE), a typical halogen bond donor. Single crystal structure analysis of 2 suggests a halogen bonding interaction between crown ether complex and TIE. The two compounds’ thermal, optical and vibrational properties are investigated in comparison

The dehydrocoupling of primary phosphines with N‐heterocyclic carbenes (NHCs) to yield NHC‐phosphinidenes is reported. The reaction of two equiv of the NHCs Me2Im (1,3‐dimethylimidazolin‐2‐ylidene), Me4Im (1,3,4,5‐tetramethylimidazolin‐2‐ylidene), iPr2Im (1,3‐di‐iso‐propylimidazolin‐2‐ylidene) and Mes2Im (2,4,6‐trimethylphenylimidazolin‐2‐ylidene) with PhPH2 and MesPH2 led to the NHC stabilized phosphinidenes