Crystal structure ofcatena-poly[[cadmium(II)-di-μ2-bromido-μ2-<scp>L</scp>-proline-κ2O:O′] monohydrate]

In the title salt, crystalline water mol­ecules serve as donors for the weak inter­molecular O—H⋯O and O—H⋯Br hydrogen bonds which link adjacent polymeric chains.
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.