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Journal of Coordination Chemistry Volume 61, 2008 - Issue 5
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Original Articles

Syntheses and structures of mononuclear and binuclear transition metal complexes (Cu, Zn, Ni) with (salicylideneglycine and imidazole)

Yong Heng Xing Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. ChinaCorrespondence[email protected]
,
Jing Han Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
,
Guang Hua Zhou Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
,
Zheng Sun Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China
,
Xing Jing Zhang Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
,
Bao Li Zhang Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
,
Yuan Hong Zhang Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
,
Hou Qun Yuan Bioinorganic Laboratory, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
&
Mao Fa Ge Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China
 show all
Pages 715-730 | Received 13 Dec 2006, Accepted 26 Jan 2007, Published online: 03 Mar 2008
 
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Abstract

Four transition metal (Cu(II), Zn(II) and Ni(II)) complexes with a Schiff-base ligand (salicylideneglycine) have been synthesized. All complexes have been characterized by elemental analysis, IR spectra and UV-vis spectroscopy. Single-crystal analyses were performed with (C9H7NO3)Cu(C3H4N2) (1), (C9H7NO3)Zn(C3H4N2)2 (2), (C9H7NO3)2Ni2(C3H4N2)4 (3) and (C9H7NO3)Ni(C3H4N2)2(C4H5N2O) · CH3OH · 0.5H2O (4) and fluorescence spectra and thermogravimetric analyses were also carried out. Structural analyses show that 1, 2 and 4 have similar coordinated modes with the tridentate amino-Schiff-base ligand, but differ from the binuclear nickel complex 3. The tridentate amino-Schiff-base ligand contains aliphatic nitrogen, phenoxy, and carboxylic oxygen as three donor atoms. In addition, inter- and intra-molecular hydrogen bonds are also discussed.

Acknowledgements

We wish to express our sincere thanks to the National Natural Science Foundation of China (No. 20571036), the Education Foundation of Liaoning Province (No. 05L212), the SRF for ROCS, and SEM for financial assistance.

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