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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of catena-polycadmium(II)-di-#956;2-bromido-#956;2-l-proline-#954;2O:O#8242; monohydrate
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Crystal structure of catena-polycadmium(II)-di-#956;2-bromido-#956;2-l-proline-#954;2O:O#8242; monohydrate

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摘要

In the title coordination polymer, {CdBr2(C5H9NO2)#183;H2O}n, the CdII ion is coordinated by four bromido ligands and two carboxyl#173;ate oxygen atoms of two symmetry-related proline ligands, which exist in a zwitterionic form, in a distorted octa#173;hedral geometry. There is an intra#173;molecular N#8212;H#8943;O hydrogen bond between the amino group and the carboxyl#173;ate fragment. Each coordinating ligand bridges two CdII atoms, thus forming polymeric chains running along the c-axis direction. The water mol#173;ecules of crystallization serve as donors for the weak inter#173;molecular O#8212;H#8943;O and O#8212;H#8943;Br hydrogen bonds that link adjacent polymeric chains, thus forming a three-dimensional structure. N#8212;H#8943;O and N#8212;H#8943;Br hydrogen bonds also occur.

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