Syntheses, characterizations and crystal structures of new organoantimony(V) complexes with heterocyclic (S, N) ligand |
| |
Authors: | Chunlin Ma Qingfu Zhang Rufen Zhang |
| |
Institution: | a Department of Chemistry, Liaocheng University, Liaocheng, Shandong 252059, PR China b Department of Chemistry, Taishan University, Taian 271021, PR China |
| |
Abstract: | Eight new organoantimony(V) complexes with 1-phenyl-1H-tetrazole-5-thiol L1H] and 2,5-dimercapto-4-phenyl-1,3,4-thiodiazole L2H] of the type RnSbL5 − n (L = L1: n = 4, R = n-Bu 1, Ph 2, n = 3, R = Me 3, Ph 4; L = L2: n = 4, R = n-Bu 5, Ph 6, n = 3, R = Me 7, Ph 8) have been synthesized. All the complexes 1-8 have been characterized by elemental, FT-IR, 1H and 13C NMR analyses. Among them complexes 2, 6 and 8 have also been confirmed by X-ray crystallography. The structure analyses show that the antimony atoms in complexes 2 and 6 display a trigonal bipyramid geometry, while it displays a distorted capped trigonal prism in complex 8 with two intramolecular Sb?N weak interactions. Furthermore, the supramolecular structure of 2 has been found to consist of one-dimensional linear molecular chain built up by intermolecular C-H?N weak hydrogen bonds, while a macrocyclic dimer has been found in complex 6 linked by intermolecular C-H?S weak hydrogen bonds with head-to-tail arrangement. Interestingly, one-dimensional helical chain is recognized in complex 8, which is connected by intermolecular C-H?S weak hydrogen bonds. |
| |
Keywords: | 1-Phenyl-1H-tetrazole-5-thiol 2 5-Dimercapto-4-phenyl-1 3 4-thiodiazole Organoantimony(V) Crystal structure Weak hydrogen bond |
本文献已被 ScienceDirect 等数据库收录! |
|