高等学校化学学报

高等学校化学学报

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一维配位聚合物2-巯基-5-甲基-1,3,4-噻重氮锌钴的合成、结构与性能

王磊1,2, 孙金绪1, 董文钧2, 施展2, 冯守华2   

    1. 青岛科技大学化学与分子工程学院, 生态化工教育部重点实验室, 青岛 266042;
    2. 吉林大学无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2008-02-04 修回日期:1900-01-01 出版日期:2009-01-10 发布日期:2009-01-10
  • 通讯作者: 冯守华

One-dimensional Coordination Polymers Generated from Organosulfur Ligand: Synthesis, Structure, Fluorescence and Magnetic Properties

WANG Lei1,2, SUN Jin-Xu1, DONG Wen-Jun2, SHI Zhan2, FENG Shou-Hua2*   

    1. Key Laboratory of Eco-chemical Engineering, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2008-02-04 Revised:1900-01-01 Online:2009-01-10 Published:2009-01-10
  • Contact: FENG Shou-Hua

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被引次数

4

摘要： 于中温混合溶剂热体系中合成出2种同构的一维配位聚合物[Zn(MMTT)2]n和[Co(MMTT)2]n(MMTT=2-巯基-5-甲基-1,3,4-噻重氮), 并进行了单晶结构解析、红外、热重、荧光及磁性等表征. 晶体同属单斜晶系, C2/c空间群. [Zn(MMTT)2]n的晶胞参数: a=1.40432(8) nm, b=1.13824(5) nm, c=0.72378(4) nm, β=101.425(3)°, V=1.13400(10) nm3; [Co(MMTT)2]n的晶胞参数: a=1.4001(9) nm, b=1.1142(9) nm, c=0.7403(3) nm, β=107.84(6)°, V=1.0994(12) nm3. 化合物中金属原子采取四面体构型, 与MMTT配体分子相互连接形成无限一维链; 链与链之间通过配体间弱的C-H···S 氢键连接而形成三维超分子网络结构.

关键词: 配位聚合物, 2-巯基-5-甲基-1,3,4-噻重氮锌/钴, 晶体结构, 磁性, 巯基配体

Abstract: Two new one-dimensional(1D) coordination polymers [M(2-mercapto-5-methyl-1,3,4-thiadiazole)2]n[M=Zn(1), Co(2)], were synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction, FTIR, elemental analysis, and thermogravimetric analysis. Both two compounds crystallize in the monoclinic space group C2/c with analogous structures, in which the metal center exhibit distorted tetrahedral coordination geometries. The deprotonated 2-mercapto-5-methyl-1,3,4-thiadiazole molecule as a μ2-ligand linkers the metal center into a 1D chain, which are futher linked by weak C-H···S bonds into a three-dimensional supramolecular framework. At room temperature, both two compounds exhibit intense photoluminescence. On the basis of the results of TG-DTA analyses, the structure is thermally stable up to 210 ℃ for compound 1 and 260 ℃ for compound 2. The magnetic behavior of compound 2 was studied.

Key words: Coordination polymer, M(2-mercapto-5-methyl-1,3,4-thiadiazole)2(M=Zn, Co), Crystal structure, Magnetic property, Organosulfur ligand

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