Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (4): 814.

• Articles • Previous Articles     Next Articles

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.

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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