Cd(II) Pseudohalide Complexes with N, N′‐Bis(3‐ethoxysalicylidenimino) 1,3‐Diaminopropane: Crystal Structures, Hirshfeld Surface, Antibacterial and Anti‐Biofilm Properties
Cd(II) Pseudohalide Complexes with N, N′‐Bis(3‐ethoxysalicylidenimino) 1,3‐Diaminopropane: Crystal Structures, Hirshfeld Surface, Antibacterial and Anti‐Biofilm Properties
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DOI：
10.1002/slct.201702970
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发表时间：
2018-03
期刊：
影响因子：
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通讯作者：
D. Majumdar;J. Biswas;M. Mondal;M. Babu;Sourav Das;Ramesh K. Metre;S. Sreekumar;K. Bankura;Dipankar Mishra
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文献类型：
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作者：
D. Majumdar;J. Biswas;M. Mondal;M. Babu;Sourav Das;Ramesh K. Metre;S. Sreekumar;K. Bankura;Dipankar Mishra
N2 O 4供体席夫碱配体的自组装，即N，N′-双（3-乙氧基水杨亚氨基）1，3-二氨基丙烷（H2 LOEt）与乙酸镉盐在辅助共配体硫氰酸根/叠氮基/氯化物存在下形成三种阴离子控制络合物，具体地，[Cd 2LOEt（μ 1，3-SCN）（η1-SCN）]n（1）、{Cd4（LOEt）2（μ 1，1-N3）3（η1-N3）]2（2）和[Cd2（LOEt）（Cl）2·CH3OH]·CH3OH]（3）。通过单晶X射线衍射研究确定配合物1 - 3的晶体结构。单晶X射线衍射分析证实配合物1是一个一维的聚合物链，其中Cd（II）离子通过一个硫氰酸根基团以端对端的方式桥接。配合物2是一个中心对称的八核配合物，具有双端叠氮化物（μ 1，1-N3−）作为连接体。另一方面，3是一个双核配合物，末端有Cl−离子。结构分析表明，所有配合物都具有一个由双去质子化配体的联合配位作用固定的四元Cd 2（μ2-O）2核.通过元素分析、红外光谱和紫外-维斯光谱对配合物1 - 3进行了表征。研究了配合物1 - 3在DMSO溶液中的发光性质。研究了配合物1 - 3对革兰氏阳性和革兰氏阴性细菌菌株的抗菌和抗菌膜潜力。分子间相互作用相对于镉络合物的氢键的百分比进行了定量的赫希菲尔德表面。
Self‐assemblies of N2O4donor Schiff base ligands, that is, N,N′‐Bis(3‐ethoxysalicylidenimino) 1, 3‐diaminopropane (H2LOEt) with cadmium acetate salts in presence of auxiliary co‐ligands thiocyanato/azido/chloride allow the formation of three anion control complexes, specifically, [Cd2LOEt(μ1,3‐SCN)(η1‐SCN)]n(1), {Cd4(LOEt)2(μ1,1‐N3)3(η1‐N3)]2(2) and [Cd2(LOEt)(Cl)2.CH3OH].CH3OH] (3). Crystal structures of complexes1–3were determined by single‐crystal X‐ray diffraction studies. The single‐crystal X‐ray diffraction analysis confirmed that complex1is an one‐dimensional polymeric chain in which Cd(II) ions are bridged by one thiocyanate group bonding in an end‐to‐end fashion. Complex2is a centrosymmetric octanuclear complex with double end‐on azide (μ1,1‐N3−) as linker. On the other hand,3is a dinuclear complex with terminally bound Cl−ions. Analysis of the structure revealed that all the complexes possess a 4‐membered Cd2(μ2‐O)2core fastened by the combined coordination action of a doubly deprotonated ligand. Complexes1–3have been successfully characterized by elemental analyses, IR and UV‐Vis spectroscopy. The luminescent properties of complexes1–3have been studied in DMSO solution. The antibacterial and antibiofilm potential for complexes1–3were investigated against Gram‐positive and Gram‐negative bacterial strains. Intermolecular interactions with respect to percentages of hydrogen bonding of cadmium complexes were quantified by Hirshfeld surface.