文献类型：期刊文献

英文题名：Characterization and thermal analysis of thiourea and bismuth trichloride complex

作者：Luan, Shao Rong[1,2];Zhu, Yi Hua[2];Jia, Yu Qing[3];Cao, Qing[1]

机构：[1]E China Univ Sci & Technol, Res Ctr Anal & Test, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Dept Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：99

期号：2

起止页码：523

外文期刊名：JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY

收录：;EI(收录号：20101912914183);WOS:【SCI-EXPANDED(收录号:WOS:000275657600021)】；

基金：The authors gratefully acknowledge the National Natural Science Foundation of China (20676038), the Key Project of Science and Technology for Ministry of Education (107045) and the Shanghai Leading Academic Discipline Project (Project Number: B502) for financial supports.

语种：英文

外文关键词：Ionic compounds; Bismuth(III) chloride; Thiourea; Crystal structure; Raman spectroscopy; Thermal analysis; TG-DTA-MS; DSC

摘要：A complex of thiourea and bismuth trichloride has been synthesized. Its composition is Bi(3)Cl(9)[SC(NH(2))(2)](7). Crystallographic data are a = 7.141(2) angstrom, b = 8.820(3) angstrom, c = 16.365(5) angstrom, alpha = 99.389(4)degrees, beta = 95.422 (4)degrees, gamma = 106.177(4)degrees, triclinic system. There are the mononuclear anion [BiCl(5)SC(NH(2))(2)](2-) and the dinuclear cation {Bi(2)Cl(4)[SC(NH(2))(2)](6)}(2+) with the Bi-Cl-Bi bridge bonds in the complex. The electric conductance of the absolute methanol solution contained the complex indicates that the complex is an ionic compound. Raman spectra indicate that the bismuth ion is coordinated by the sulfur atoms of the thiourea. The thermal analysis verifies the structure of complex. The TG-MASS curves show the structure rearrangement in the complex at about 118 degrees C. The DSC curves and calculation means that the structure rearrangement is irreversible.