高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (4): 814.

• 研究论文 • 上一篇    下一篇

系列Co-aip配聚物的合成、结构及表面光电性能

丛盛美1,刘东伟1,李雷1,金晶1,牛淑云1,张广宁2   

  1. 1. 辽宁师范大学化学化工学院,  
    2.  功能材料化学研究所, 大连 116029
  • 收稿日期:2010-10-26 修回日期:2010-12-05 出版日期:2011-04-10 发布日期:2011-03-09
  • 通讯作者: 牛淑云 E-mail:syniu@sohu.com
  • 基金资助:

    国家自然科学基金(批准号: 20571037)和辽宁省教育厅项目(批准号:  2007T092)资助.

Synthesis, Structure and Surface Photo-electric Properties of a Series of Co-aip Coordination Polymers

CONG Sheng-Mei1, LIU Dong-Wei1, LI Lei1, JIN Jing1, NIU Shu-Yun1*, ZHANG Guang-Ning2   

  1. 1. School of Chemistry and Chemical Engineering,
    2.  Institute of Functionalized Materials, Liaoning Normal University, Dalian 116029, China
  • Received:2010-10-26 Revised:2010-12-05 Online:2011-04-10 Published:2011-03-09
  • Contact: NIU Shu-Yun E-mail:syniu@sohu.com
  • Supported by:

    国家自然科学基金(批准号: 20571037)和辽宁省教育厅项目(批准号:  2007T092)资助.

摘要: 采用水热方法合成了3种以5-氨基异间苯二甲酸根为桥配体的Co(II)配聚物,[Co2(aip)2(bipy)]n?2nH2O (1),[Co(aip)(imH)]n (2),[Co(aip)(phen)]n (3),(H2aip = 5-氨基异间苯二甲酸,bipy = 2, 2′-联吡啶,imH = 咪唑,phen = 1,10-邻菲啰啉). 通过X-射线单晶衍射、红外光谱(IR)、紫外吸收光谱(UV-Vis)、元素分析、表面光电压光谱(SPS)和场诱导表面光电压光谱(FISPS)等方法对配聚物进行了表征. 结构解析结果表示,(1)是具有3D无限结构的配聚物;(2)和(3)是具有2D无限结构的配聚物,但它们又分别通过氢键或π-π堆积作用进一步连成了3D无限结构. 在配聚物中,aip基团采取了μ3-ηo1ηo1ηo1ηo2,μ5-ηn1ηo1ηo1ηo1ηo1,μ3-ηn1ηo1ηo1,μ3-ηn1ηo1ηo1ηo1 4种配位模式. 配聚物SPS和FISPS结果显示,配聚物(1)~(3)在300~800 nm范围内都呈现正的表面光伏响应(SPV),表明3者均具有一定的光电转换能力. 讨论了配聚物配位环境和空间维度的不同对配聚物表面光电响应的影响以及SPS与UV–Vis吸收光谱的对应关系.

关键词: Co(II), 配位聚合物, 结构, 表面光电压

Abstract: Three Co(II) coordination polymers with the ligand of 5-aminosalicylic groups [Co2(aip)2(bipy)]n?2nH20 (1), [Co(aip)(imH)]n (2), [Co(aip)(phen)]n (3) (H2aip = 5-aminosalicylic acid, bipy = 2,2′-bipyridine, imH = imidazole, phen = 1,10-phenanthroline) were synthesized by hydrothermal method. They were characterized by X-ray single crystal diffraction, IR, UV-Vis, elemental analysis, SPS and FISPS. The structural analyses indicated that the complex (1) is 3D infinite coordination polymer; complex (2) and (3) are both 2D infinite coordination polymers, and hydrogen bonds link the complexes further connect to 3D infinite structures. There are four coordination fations of aip groups, i.e., μ3-ηo1ηo1ηo1ηo2, μ5-ηn1ηo1ηo1ηo1ηo1, μ3-ηn1ηo1ηo1, μ3-ηn1ηo1ηo1ηo1. At the same time, the surface photovoltage spectroscopy (SPS) and field-induced surface phtotvoltage spectroscopy (FISPS) were determined. The results revealed the complexes 1~3 exhibit positive surface phtotvoltage responses in the range of 300~800 nm, which indicated that the three polymers have certain photo-electric conversion properties. The influences of coordiantion enviroment and demensition for the SPS and the relationships between UV-Vis spectra and SPS were disscussed.

Key words: Co(II), Coordinate Polymers, Structure, Surface photovoltage

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