Crystal structure of catena-poly[[cadmium(II)-di-μ2-bromido-μ2-l-proline-κ2O:O′] monohydrate]

Acta Crystallographica Section E: Crystallographic Communications

Thamotharan, S.¹  Balakrishnan, T.¹  Ramamurthi, K.²  Sathiskumar, S.² 

[1] Research Department of Physics, Periyar EVR College (Autonomous), Tiruchirappalli 620 023, India;Crystal Growth Laboratory, PG &Crystal Growth and Thin Film Laboratory, Department of Physics and Nanotechnology, SRM University, Kattankulathur 603 203, India;Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613 401, India

关键词: CRYSTAL STRUCTURE;    L-PROLINE CADMIUM BROMIDE;    CADMIUM COORDINATION POLYMER;    N/O-H...BR/O HYDROGEN BONDS;    DISTORTED OCTAHEDRAL GEOMETRY.;   

DOI  :  10.1107/S2056989015001176

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title coordination polymer, {[CdBr2(C5H9NO2)]·H2O}n, the CdII ion is coordinated by four bromido ligands and two carboxyl­ate oxygen atoms of two symmetry-related proline ligands, which exist in a zwitterionic form, in a distorted octa­hedral geometry. There is an intra­molecular N—H⋯O hydrogen bond between the amino group and the carboxyl­ate fragment. Each coordinating ligand bridges two CdII atoms, thus forming polymeric chains running along the c-axis direction. The water mol­ecules of crystallization serve as donors for the weak inter­molecular 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.

【 授权许可】

CC BY