高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (3): 418.

• 研究简报 • 上一篇    下一篇

配位聚合物{[Co(μ-4,4′-bpy)(4,4′-bpy)2·(H2O)2]·(4,4′-bipy)·(H2O)4·(OH)3·(Me)4N}n的晶体结构及性质

金晶1, 牛淑云1, 杨忠志1, 杨光第2, 叶玲2   

  1. 1. 辽宁师范大学化学系, 大连 116029;
    2. 吉林大学超分子结构与材料教育部重点实验室, 长春 130023
  • 收稿日期:2003-06-10 出版日期:2004-03-24 发布日期:2004-03-24
  • 通讯作者: 牛淑云(1941年出生),女,教授,博士生导师,从事功能配合物研究.E-mail;syniu@sohu.com E-mail:syniu@sohu.com
  • 基金资助:

    国家自然科学基金(批准号;20071016);吉林大学无机合成与制备化学国家重点实验室开放基金(批准号;2001-002)资助

Crystal Structure and Properties of Coordination Polymer; {[Co(μ-4,4′- bipy)(4,4′-bipy)2(H2O)2]·(4,4′-bipy)·(H2O)4·(OH)3·(Me)4N}n

JIN Jing1, NIU Shu-Yun1, YANG Zhong-Zhi1, YANG Guang-Di2, YE Ling2   

  1. 1. Department of Chemistry, Liaoning Normal University, Dalian 116029, China;
    2. Key Lab of Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, China
  • Received:2003-06-10 Online:2004-03-24 Published:2004-03-24

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关键词: Co(Ⅱ)配位聚合物, 晶体结构, 磁性, 光-电性能

Abstract: A novel Co(Ⅱ) coordination polymer was hydrothermally synthesized and characterized. The crystal crystallizes in the monoclinic system, space group Cc with a =1.772 59(4)nm, b = 1.150 00(10)nm , c =2.452 76(11)nm, β =92.723(3)°, V =4.994 3 nm3, Z =4, R =0.080 9, wR =0.213 4. The polymer based on [Co(μ 4,4′ bipy)(4,4′ bipy)2((H2O)2]n linear chains was cross linked by the H bond bridge of Co—OH2…4,4′ bipy—Co and π-π stacking interaction, producing extended 2D ladder structure. The susceptibility of the polymer at variable temperature(2.0_300 K) shows a weak antiferromagnetic interaction and implies that the polymer has the tendency of spin transition. Also, the result of surface photovoltage spectroscopy(SPS) reveals that the polymer has a significant photo electronic transferring property in UV Vis regions, which correspond to π-π transition, L-M charge transfer transition(shoulder) and d-d transition of Co2+ion, respectively.

Key words: Co(Ⅱ) coordination polymer, Crystal structure, Magnetism, Photoelectronic property

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