当前位置: X-MOL 学术J. Solid State Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis, structural characterization, antibacterial activity and selective dye adsorption of silver (I)-based coordination polymers by tuning spacer length and binding mode of chromate anion
Journal of Solid State Chemistry ( IF 3.3 ) Pub Date : 2020-03-26 , DOI: 10.1016/j.jssc.2020.121322
Azizolla Beheshti , Fatemeh Panahi , Peter Mayer , Hossein Motamedi , Emmanuele Parisi , Roberto Centore

Two silver-based coordination polymers, {[AgL4]2[CrO4]}n (1) and {[Ag2(L3)(CrO4)].CH3OH}n (2) (L4 = 1,1′-(butane-1,4-diyl) bis(3-methylimidazoline-2-thione) and L3 = 1,1′-(propane-1,3-diyl)bis(3-methylimidazoline-2-thione)) have been successfully prepared and fully characterized via single crystal X-ray diffraction, powder X-ray diffraction (PXRD), FT-IR spectra, elemental analysis (CHN) and thermo gravimetric analysis (TGA). Polymers 1 and 2 present different structures due to the flexiblity of the thione ligands L4 and L3 in directing the coordination mode of chramate and hence dimension of the considered polymers. The flexiblity of the ligands have no effect on the coordination geometry around the silver atoms. In contrast to the 3D CP-1, in polymer 2 hydrogen bonding interactions between the oxygen atoms of CrO42− anions and hydrogen atoms of the methylene groups of the spacer of the ligand forming a 3D supramolecular network. These compounds be able to absorbed Aniline blue (AB) as anionic dye from aqueous solution with a maximum adsorption capacity of 227.73 and 219.95 mg g−1 for 1 and 2, respectively. Therefore,polymer 1 has a slightly more efficiently than polymer 2. Three adsorption kinetic and isotherm models were investigated. The synthesized polymers possess antibacterial activity against the selected strain of Gram-negative and Gram-positive bacteria.



中文翻译:

通过调节间隔物长度和铬酸根阴离子的键合方式,合成(结构)表征,抗菌活性和银(I)基配位聚合物选择性染料吸附

两种银基配位聚合物,{[AgL 4 ] 2 [CrO 4 ]} n1)和{[Ag 2(L 3)(CrO 4)]。CH 3 OH} n2)(L 4  = 1 ,1'-(丁烷-1,4-二基)双(3-甲基咪唑 啉-2-硫酮)和L 3 = 1,1'-(丙烷-1,3-二基)双(3-甲基咪唑啉-2-硫酮) ))已成功制备,并已通过单晶X射线衍射,粉末X射线衍射(PXRD),FT-IR光谱,元素分析(CHN)和热重分析(TGA)进行了全面表征。聚合物12由于硫酮配体L 4和L 3的柔韧性决定了氯酸盐的配位模式并因此影响了所考虑的聚合物的尺寸,因此它们具有不同的结构。配体的柔性对银原子周围的配位几何形状没有影响。与3D CP-1相反,在聚合物2中,CrO 4 2-阴离子的氧原子与配体的间隔基的亚甲基的氢原子之间的氢键相互作用形成3D超分子网络。这些化合物能够吸收苯胺蓝(AB)作为从与227.73 219.95和毫克g的最大吸附容量水溶液阴离子染料-112。因此,聚合物1的效率略高于聚合物2。研究了三种吸附动力学模型和等温线模型。合成的聚合物对所选革兰氏阴性菌和革兰氏阳性菌具有抗菌活性。

更新日期:2020-03-27
down
wechat
bug