首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Helicity-induced two-layered Cd(II) coordination polymers built with different kinked dicarboxylates and an organodiimidazole
Authors:Subhadip Neogi  Manish K Sharma  Madhab C Das  Parimal K Bharadwaj
Institution:Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
Abstract:A new ligand bis-(4-imidazol-1-yl-phenyl)-diazene (azim), incorporating an azo moiety at the center and two imidazole groups at the terminals has been designed and synthesized. Under solvothermal conditions, this ligand reacts with Cd(NO3)2·6H2O and different angular aromatic dicarboxylates to form layered coordination polymers: Cd(azim)(bcp)]n (1) and {Cd(azim)(oba)](H2O)}n (2) bcpH2 = 1,3-bis-(4′-carboxy phenoxy)benzene; oba = 4,4′-oxybis(benzoate)]. Both 1 and 2 have been characterized by single-crystal X-ray diffraction technique, elemental analysis, PXRD and IR spectroscopy. The structure of each polymer looks like 2D grid where two layers are interpenetrated in a “cloth-like” topology. Both the structures contain single- and double-stranded helical coils where the pitches as well as the width are controlled by the carboxylate co-ligands. The hydrogen-bonding interactions between adjacent layers extend these structures to overall 3D supramolecular architectures.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号