1147015-46-0Relevant academic research and scientific papers
Supramolecular assembly of double-stranded chains, helical chains and catenane-like layers with flexible ligands
Sun, Chang-Yan,Li, Xin-Xin,Wang, Shui-Feng,Li, Wen-Jun,Zheng, Xiang-Jun
, p. 950 - 955 (2008)
Four new transition metal coordination polymers, [Co(bpndc)(phen)(H 2O)]n (1), [Co3(bpndc)3(2,2′- bpy)2]n·0.5n(i-C3H7OH) (2), and [M(bpndc)(2,2′-bpy)2]n (M = Zn, 3; Cu, 4; H 2bpndc = benzophenone -4,4′-dicarboxylic acid; phen = 1,10-phenanthroline; 2,2′-bpy = 2,2′-bipyridine) have been synthesized by the hydrothermal reactions and characterized by single crystal X-ray diffraction, elemental analysis, and IR spectrum. Because of the introduction of different terminal auxiliary ligands, bpndc ligands in complexes 1 and 2 adopt different coordination modes. In complex 1, bpndc ligands act as tridentate ligand and bridge CoII ions into 1D double-stranded chains; while complex 2 possesses 2D (4,4) grids, where bpndc ligands adopt tetradente and pentadentate modes. Two such grids interpenetrate to form a novel catenane-like layer. Complexes 3 and 4 are isostructural. Bpndc ligands adopt tetradentate mode and bridge metal ions forming 1D helical chains.
