文献类型：期刊文献

英文题名：Synthesis, characterization and thermal decomposition of thiourea complexes of antimony and bismuth triiodide

作者：Zhong, G.Q.[1]; Luan, S.R.[4]; Wang, P.[2]; Guo, Y.C.[3]; Chen, Y.R.[4]; Jia, Y.Q.[4]

机构：[1] College of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; [2] Department of Chemistry, Yancheng Teacher's College, Yancheng 224002, China; [3] Department of Chemistry, Nanyang Teacher's College, Nanyang 473061, China; [4] Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China

年份：2006

卷号：86

期号：3

起止页码：775

外文期刊名：Journal of Thermal Analysis and Calorimetry

收录：EI(收录号：20065010309339)

语种：英文

外文关键词：Antimony - Bismuth compounds - Complexation - Crystal structure - Lattice constants - Pyrolysis - Reaction kinetics - Sulfur compounds - Thermoanalysis

摘要：The thiourea complexes of antimony and bismuth triiodide were synthesized by a direct reaction of antimony and bismuth triiodide with thiourea powder at room temperature. The formula of the complex is MI3[SC(NH 2)2]3(M=Sb, Bi). The crystal structure of the complexes belongs to monoclinic system and the lattice parameters are a=1.4772 nm, b=1.6582 nm, c=2.0674 nm and β=90.81° for SbI 3(SC(NH2)2)3 and a=1.4009 nm, b=2.0170 nm, c=2.0397 nm and β=90.84° for BiI3[SC(NH 2)2]3. The infrared spectra reveal that the trivalent antimony or bismuth ion is coordinated by the nitrogen atom, not the sulfur atom of the thiourea. Thermal analysis shows that there are two times structure rearrangements or phase transformation in the complexes from 100 to 170°C. ? Springer-Verlag 2006.