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

Sathiskumar S, Balakrishnan T, Ramamurthi K, Thamotharan S - Acta Crystallogr E Crystallogr Commun (2015)

Bottom Line: There is an intra-molecular N-H⋯O hydrogen bond between the amino group and the carboxyl-ate fragment.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.

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Affiliation: Crystal Growth Laboratory, PG & Research Department of Physics, Periyar EVR College (Autonomous), Tiruchirappalli 620 023, India.

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.

No MeSH data available.


A portion of the crystal packing viewed along the a axis and showing hydrogen bonds (dashed lines) between two neighbouring polymeric chains.
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fig3: A portion of the crystal packing viewed along the a axis and showing hydrogen bonds (dashed lines) between two neighbouring polymeric chains.

Mentions: The crystal structure of (I), is stabilized by inter­molecular N—H⋯O, N—H⋯Br, O—H⋯O and O—H⋯Br hydrogen bonds (Table 1 ▶, Figs. 2 ▶ and 3 ▶). The water mol­ecules serve as donors for the weak O—H⋯O and O—H⋯Br hydrogen bonds (Table 1 ▶) which link adjacent polymeric chains (Fig. 3 ▶), thus forming a three-dimensional structure.


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

Sathiskumar S, Balakrishnan T, Ramamurthi K, Thamotharan S - Acta Crystallogr E Crystallogr Commun (2015)

A portion of the crystal packing viewed along the a axis and showing hydrogen bonds (dashed lines) between two neighbouring polymeric chains.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384587&req=5

fig3: A portion of the crystal packing viewed along the a axis and showing hydrogen bonds (dashed lines) between two neighbouring polymeric chains.
Mentions: The crystal structure of (I), is stabilized by inter­molecular N—H⋯O, N—H⋯Br, O—H⋯O and O—H⋯Br hydrogen bonds (Table 1 ▶, Figs. 2 ▶ and 3 ▶). The water mol­ecules serve as donors for the weak O—H⋯O and O—H⋯Br hydrogen bonds (Table 1 ▶) which link adjacent polymeric chains (Fig. 3 ▶), thus forming a three-dimensional structure.

Bottom Line: There is an intra-molecular N-H⋯O hydrogen bond between the amino group and the carboxyl-ate fragment.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Crystal Growth Laboratory, PG & Research Department of Physics, Periyar EVR College (Autonomous), Tiruchirappalli 620 023, India.

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.

No MeSH data available.