Synthesis, characterization and 1D helical chain crystal structure of [Cu(DBA)2(1,10-phen)]n and [Cd(DBA)2(1,10-phen)2] (DBA = benzilic acid) |
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| Authors: | Yongcai Qiu Feng Sun Yuepeng Cai |
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| Institution: | School of chemistry and Environment, South China Normal University, Guangzhou 510006, PR China |
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| Abstract: | Two novel complexes Cu(DBA)2(1,10-phen)]n (1) and Cd(DBA)2(1,10-phen)2] (2) HDBA = benzilic acid: (C6H5)2C(OH)COOH] have been synthesized and characterized by element analysis and fluorescence spectroscopy. The crystal structures of compounds 1, 2 and HDBA (3) were also determined. Complex 1 is a one-dimensional (1D) helical infinite chain, in which (1,10)-phen]Cu(II) units were bridged by benzilic acid. Complex 2 is a mononuclear structure, and is self-assembled through π-π stacking interactions to form a 1D helical chain. Compound 3 is self-assembled to form a 1D helical chain through hydrogen bonds interactions. Thermal analyses indicate that complexes 1 and 2 are stable under 200 and 254 °C in solid state, respectively. |
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| Keywords: | Coordination polymer Helical chain Crystal structure Fluorescence |
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