Synthesis and Crystal Structure of a Copper(II) Complex with a Tab-Tab Disulfide Ligand (Tab-Tab)[CuBr_4](Tab=Trimethylammoniumphenyl-4-thiolate)  

作　　者：TANG Xiao-Yan CHEN Jin-Xiang LANG Jian-Ping 

机构地区：[1]School of Chemistry and Chemical Engineering, Suzhou University, Jiangsu 215123, China [2]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China

出　　处：《Chinese Journal of Structural Chemistry》2006年第9期1100-1104,共5页结构化学（英文）

基　　金：The project was supported by the National Natural Science Foundation of China (No. 20525101), the NSF of Jiangsu Province (No. BK2004205), State Key Laboratory of Structural Chemistry (No. 030066) and Key Laboratory of Organic Synthesis of Jiangsu Province (No. JSK001)

摘　　要：Reaction of CuBr2 with TabHPF6/Et3N in methanol followed by dissolving the resulting precipitate in hydrobromic acid yielded purple blocks of the title complex [Tab-Tab][CuBr4] 1 （C18H26CuBraN2S2）. 1 crystallizes in the monoclinic system, space group P2 1/n with a = 9.686（3）, b = 19.257（5）, c = 13.399（4） ,A, β= 93.610（9）°, V= 2494.2（13） ,A^3, Z= 4, Dc = 1.911 g/cm^3, T= 193（2） K, Mr = 717.71, F（000） = 1396,μ = 74.58 cm^-1, S = 1.126, R = 0.0748 and wR = 0.1736 for 2921 observed reflections with 1 〉 2σ（I）. The structure of 1 contains a discrete [CuBr4]^2- dianion and a [Tab-Tab]^2＋ dication. In the dianion, the Cu atom is coordinated to four Br atoms forming a distorted tetrahedral coordination geometry. The bromides of the dianion interact with the H atoms of the phenyl and methyl groups of the dications to form a 1D hydrogen-bonded chain.Reaction of CuBr2 with TabHPF6/Et3N in methanol followed by dissolving the resulting precipitate in hydrobromic acid yielded purple blocks of the title complex [Tab-Tab][CuBr4] 1 （C18H26CuBraN2S2）. 1 crystallizes in the monoclinic system, space group P2 1/n with a = 9.686（3）, b = 19.257（5）, c = 13.399（4） ,A, β= 93.610（9）°, V= 2494.2（13） ,A^3, Z= 4, Dc = 1.911 g/cm^3, T= 193（2） K, Mr = 717.71, F（000） = 1396,μ = 74.58 cm^-1, S = 1.126, R = 0.0748 and wR = 0.1736 for 2921 observed reflections with 1 〉 2σ（I）. The structure of 1 contains a discrete [CuBr4]^2- dianion and a [Tab-Tab]^2＋ dication. In the dianion, the Cu atom is coordinated to four Br atoms forming a distorted tetrahedral coordination geometry. The bromides of the dianion interact with the H atoms of the phenyl and methyl groups of the dications to form a 1D hydrogen-bonded chain.

关 键 词：tetrabromocuprate（Ⅱ） DISULPHIDE synthesis crystal structure 

分 类 号：O[理学]