Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]

In the title coordination polymer, {[Sr(C(5)H(9)NO(2))(H(2)O)(4)]Br(2)}(n), the proline mol­ecule exists in a zwitterionic form with one of the ring C atoms disordered over two sites [site-occupancy factors = 0.57 (6):0.43 (6)]. The Sr(II) ion is nine-coordinated by six water O atoms, two monodentat...

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Autores principales: Sathiskumar, Selladurai, Balakrishnan, Thangavelu, Ramamurthi, Kandasamy, Thamotharan, Subbiah
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2015
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4647404/
https://www.ncbi.nlm.nih.gov/pubmed/26594406
http://dx.doi.org/10.1107/S2056989015017302
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author Sathiskumar, Selladurai
Balakrishnan, Thangavelu
Ramamurthi, Kandasamy
Thamotharan, Subbiah
author_facet Sathiskumar, Selladurai
Balakrishnan, Thangavelu
Ramamurthi, Kandasamy
Thamotharan, Subbiah
author_sort Sathiskumar, Selladurai
collection PubMed
description In the title coordination polymer, {[Sr(C(5)H(9)NO(2))(H(2)O)(4)]Br(2)}(n), the proline mol­ecule exists in a zwitterionic form with one of the ring C atoms disordered over two sites [site-occupancy factors = 0.57 (6):0.43 (6)]. The Sr(II) ion is nine-coordinated by six water O atoms, two monodentate and two μ(2)-bridging, and three carboxyl­ate O atoms of the proline ligands, with two bridging [Sr—O range = 2.524 (4)–2.800 (5) Å]. In the crystal, there is no direct inter­action between the proline mol­ecules. However, the proline and water mol­ecules associate with the bromide counter-anions through a number of inter­molecular O—H⋯Br and N—H⋯Br hydrogen-bonding inter­actions, giving a three-dimensional supra­molecular structure.
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spelling pubmed-46474042015-11-20 Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide] Sathiskumar, Selladurai Balakrishnan, Thangavelu Ramamurthi, Kandasamy Thamotharan, Subbiah Acta Crystallogr E Crystallogr Commun Research Communications In the title coordination polymer, {[Sr(C(5)H(9)NO(2))(H(2)O)(4)]Br(2)}(n), the proline mol­ecule exists in a zwitterionic form with one of the ring C atoms disordered over two sites [site-occupancy factors = 0.57 (6):0.43 (6)]. The Sr(II) ion is nine-coordinated by six water O atoms, two monodentate and two μ(2)-bridging, and three carboxyl­ate O atoms of the proline ligands, with two bridging [Sr—O range = 2.524 (4)–2.800 (5) Å]. In the crystal, there is no direct inter­action between the proline mol­ecules. However, the proline and water mol­ecules associate with the bromide counter-anions through a number of inter­molecular O—H⋯Br and N—H⋯Br hydrogen-bonding inter­actions, giving a three-dimensional supra­molecular structure. International Union of Crystallography 2015-09-26 /pmc/articles/PMC4647404/ /pubmed/26594406 http://dx.doi.org/10.1107/S2056989015017302 Text en © Sathiskumar et al. 2015 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
spellingShingle Research Communications
Sathiskumar, Selladurai
Balakrishnan, Thangavelu
Ramamurthi, Kandasamy
Thamotharan, Subbiah
Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title_full Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title_fullStr Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title_full_unstemmed Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title_short Crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) O:O′-strontium] dibromide]
title_sort crystal structure of poly[[μ(2)-di­aqua-di­aqua-μ(2)-l-proline-κ(2) o:o′-strontium] dibromide]
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4647404/
https://www.ncbi.nlm.nih.gov/pubmed/26594406
http://dx.doi.org/10.1107/S2056989015017302
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