Helicity-induced two-layered Cd(II) coordination polymers built with different kinked dicarboxylates and an organodiimidazole

Neogi, Subhadip ; Sharma, Manish K. ; Das, Madhab C. ; Bharadwaj, Parimal K. (2009) Helicity-induced two-layered Cd(II) coordination polymers built with different kinked dicarboxylates and an organodiimidazole Polyhedron, 28 (18). pp. 3923-3928. ISSN 0277-5387

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.poly.2009.09.005

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.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Helical Structure; Coordination Polymer; Angular Carboxylate Ligand; Organodiimidazole Ligand; Interpenetrated Framework
ID Code:78687
Deposited On:23 Jan 2012 03:57
Last Modified:23 Jan 2012 03:57

Repository Staff Only: item control page