Crystal structures and physico-chemical properties of two new one-dimensional zinc(II) complexes with sulfide bridging bispyridines
作者:Xun-Cheng Su、Yan-he Guo、Shou-Rong Zhu、Hua-Kuan Lin
DOI:10.1016/s0022-2860(02)00446-5
日期:2002.12
4,4'-Dipyridyl sulfide (L-1) and 4,4'-di(3-methyl)pyridyl (L-2) sulfide coordination compounds of the general formula Zn(L)(X)(2) (L-1 = 4,4'-dipyridyl sulfide; L-2 = 4,4'-di(3-methyl)pyridyl sulfide; X = CH3COO-, Cl-), have been obtained. The compounds were characterized by single crystal X-ray diffraction, elemental analysis, IR and H-1 NMR. Both compounds are of one-dimensional coordination polymers and crystallize in the orthorhombic systems, while in different space groups with Pnc2 for [ZnL1(CH3COO)(2)] 1 and Pna2(1) for [ZnL2Cl2] 2, respectively. X-ray analysis and H-1 NMR experiments indicate that variation of ligands rather than counter anions, CH3COO- and Cl-, leads to the change in the, modes of the dimensionality array, that is, complexes 1 prefers a linear coordination fashion while complexes 2 exhibits a zigzag conformation. (C) 2002 Elsevier Science B.V. All rights reserved.