Syntheses, Structures and Surface Photo-electric Properties of Cd(Ⅱ)-btec Coordination Polymers

doi:10.7503/cjcu20120905

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (8): 1833.doi: 10.7503/cjcu20120905

• Article: Inorganic Chemistry • Previous Articles Next Articles

Syntheses, Structures and Surface Photo-electric Properties of Cd(Ⅱ)-btec Coordination Polymers

JIN Jing, DING Yu, LI Dan, CHI Yu-Xian, NIU Shu-Yun

School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China

Received:2012-10-05 Online:2013-08-10 Published:2013-07-19
Contact: shuyun niu E-mail:syniu@sohu.com

Abstract

Abstract:

Two Cd(Ⅱ) coordination polymers [Cd₃Na₂ (btec)₂(H₂O)₂]_n(1) and {[Cd₃Na₂(btec)₂·(H₂O)₂]·4H₂O}_n(2)(H₄btec=1,2,4,5-benzenetetracarboxylic acid) were synthesized by hydrothermal method. The structures were determined by single crystal X-ray diffraction. Structural analyses show that the asymmetric units of polymers 1 and 2 contain two crystallographically unique Cd(Ⅱ) ions with six- and eight-coordinate, respectively, and they possess 3D structures bridged by btec^4- groups. The structure differences between them are that the coordination environment around Na(Ⅰ) ions is different and polymer 2 has lattice water molecules. The photo-electric properties of the two polymers were investigated by surface photovoltage spectroscopy(SPS). The results of SPS show that the two polymers exhibit obvious photovoltage responses in the range of 300-500 nm, which indicates that they all possess certain photo-electric conversion properties. The SPS and UV-Vis spectra of the polymers were interrelated, and XRD patterns and TG curves of the two polymers were measured and analyzed.

Key words: Cd(Ⅱ) coordination polymer, Hydrothermal synthesis, Structure, Photoelectric property

CLC Number:

O614.24

TrendMD:

JIN Jing, DING Yu, LI Dan, CHI Yu-Xian, NIU Shu-Yun. Syntheses, Structures and Surface Photo-electric Properties of Cd(Ⅱ)-btec Coordination Polymers[J]. Chem. J. Chinese Universities, 2013, 34(8): 1833.

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Syntheses, Structures and Surface Photo-electric Properties of Cd(Ⅱ)-btec Coordination Polymers

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