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Crystal structure of catena-poly[[cadmium(II)-di-?2-bromido-?2-l-proline-?(2) O:O'] monohydrate].

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

SUBMITTER: Sathiskumar S

PROVIDER: S-EPMC4384587 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature

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Crystal structure of catena-poly[[cadmium(II)-di-μ2-bromido-μ2-l-proline-κ(2) O:O'] monohydrate].

Sathiskumar S S Balakrishnan T T Ramamurthi K K Thamotharan S S

Acta crystallographica. Section E, Crystallographic communications 20150124 Pt 2

In the title coordination polymer, {[CdBr2(C5H9NO2)]·H2O} n , the Cd(II) ion is coordinated by four bromido ligands and two carboxyl-ate oxygen atoms of two symmetry-related proline ligands, which exist in a zwitterionic form, in a distorted octa-hedral geometry. There is an intra-molecular N-H⋯O hydrogen bond between the amino group and the carboxyl-ate fragment. Each coordinating ligand bridges two Cd(II) atoms, thus forming polymeric chains running along the c-axis direction. The water mol-ec ...[more]

PMID: 25878823

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