| 基于2-苯基-4-喹啉酸及双咪唑类配体的钴(Ⅱ)配合物的合成、表征、磁性和电化学性质 |
| Syntheses, Characterizations, Magnetic Susceptibility, and Electrochemical Property of Cobalt Complex Based on 2-Phenyl-4-quinolinecarboxylic Acid and Imidazol-Based Linker |
| 作者 | 单位 | E-mail | | 侯向阳 | Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an, Shaanxi 716000, China | | | 王潇 | Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an, Shaanxi 716000, China | | | 付峰 | Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an, Shaanxi 716000, China | wx2248@126.com | | 王记江 | Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an, Shaanxi 716000, China | | | 唐龙 | Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an, Shaanxi 716000, China | |
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| 摘要: 利用2-苯基-4-喹啉酸、苯-1,4-双(咪唑基-1-甲基)和乙酸钴在二甲基甲酰胺和水的混合溶剂中反应,得到配合物[Co(pqba)2(biyb)](1)(Hpqba=2-苯基-4-喹啉酸,biyb=苯-1,4-双(咪唑基-1-甲基))。采用元素分析、红外光谱、X单晶衍射结构分析、热重分析等方法对配合物进行了表征和结构测定。配合物1属单斜晶系,C2/c空间群。配合物1中的biyb配体采用双齿桥链模式连接金属钴离子首先形成一维“之”字链,通过π…π堆积作用,进一步拓展为二维超分子结构。循环伏安法测试结果说明配合物1的电解过程为准可逆过程。磁化率测量表明,配合物1具有反铁磁性质。 |
| 关键词: 钴配合物 晶体结构 磁性质 电化学性质 |
| 基金项目: 陕西省教育厅科研计划项目(No.11JK0583),陕西省科学技术研究发展计划(No.2013JM2015)资助项目 |
| Abstract: One new metal-organic framework, namely, [Co(pqba)2(biyb)](1) (2-phenyl-4-quinolinecarboxylic acid=Hpqba, 1,4-bis(imidazol-1-ylmethyl)benzene=biyb), has been synthesized under hydrothermal conditions. The compound 1 was characterized by elemental analysis, IRspectroscopy, and X-ray single-crystal diffraction. Complex 1 crystallizes in the Monoclinic system, C2/c space group. In 1, the biyb act as bidentate ligands assembling with Co(Ⅱ) ions to a one-dimensional framework, which is further expanded to form a 2D supramolecular structure by π…π stacking interactions with biyb molecules between 1D chains. Thermogravimetric analyses for 1 is discussed. Furthermore, electrochemical property of the 1 shows that electron transfer of Co(Ⅱ) between Co(Ⅲ) in electrolysis is quasi-reversible process, and magnetic susceptibility measurements indicate that compound 1 has dominating antiferromagnetic couplings between metal ions. CCDC: 919474. |
| Keywords: cobalt complex crystal structure magnetic susceptibility electrochemical property |
| 投稿时间：2013-01-29 修订日期：2013-04-30 |
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| 侯向阳,王潇,付峰,王记江,唐龙.基于2-苯基-4-喹啉酸及双咪唑类配体的钴(Ⅱ)配合物的合成、表征、磁性和电化学性质[J].无机化学学报,2013,29(10):2245-2250. |
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