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Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material
In the title salt, [Ni(C(26)H(24)P(2))(2)](CF(3)SO(3))(2) or [Ni(dppe)(2)](2+)·(OTf(−))(2) [dppe = 1,2-bis(diphenylphosphanyl)ethane and OTf(−) = trifluoromethanesulfonate], the Ni atom (site symmetry [Image: see text]) has a square-planar geometry with the bidentate ligands chelating the met...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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International Union of Crystallography
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218916/ https://www.ncbi.nlm.nih.gov/pubmed/30443405 http://dx.doi.org/10.1107/S2056989018014846 |
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author | Cano-Benítez, Cristian A. Metta-Magaña, Alejandro J. Duarte-Ruiz, Álvaro |
author_facet | Cano-Benítez, Cristian A. Metta-Magaña, Alejandro J. Duarte-Ruiz, Álvaro |
author_sort | Cano-Benítez, Cristian A. |
collection | PubMed |
description | In the title salt, [Ni(C(26)H(24)P(2))(2)](CF(3)SO(3))(2) or [Ni(dppe)(2)](2+)·(OTf(−))(2) [dppe = 1,2-bis(diphenylphosphanyl)ethane and OTf(−) = trifluoromethanesulfonate], the Ni atom (site symmetry [Image: see text]) has a square-planar geometry with the bidentate ligands chelating the metal. As a result of the steric hindrance of the phenyl rings, the counter-ions are blocked from the metal coordination sphere. The dynamic disorder of the anion existing at 296 K is reduced at 100 K and based on these two temperatures, negative thermal expansion behaviour is observed. |
format | Online Article Text |
id | pubmed-6218916 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-62189162018-11-15 Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material Cano-Benítez, Cristian A. Metta-Magaña, Alejandro J. Duarte-Ruiz, Álvaro Acta Crystallogr E Crystallogr Commun Research Communications In the title salt, [Ni(C(26)H(24)P(2))(2)](CF(3)SO(3))(2) or [Ni(dppe)(2)](2+)·(OTf(−))(2) [dppe = 1,2-bis(diphenylphosphanyl)ethane and OTf(−) = trifluoromethanesulfonate], the Ni atom (site symmetry [Image: see text]) has a square-planar geometry with the bidentate ligands chelating the metal. As a result of the steric hindrance of the phenyl rings, the counter-ions are blocked from the metal coordination sphere. The dynamic disorder of the anion existing at 296 K is reduced at 100 K and based on these two temperatures, negative thermal expansion behaviour is observed. International Union of Crystallography 2018-10-31 /pmc/articles/PMC6218916/ /pubmed/30443405 http://dx.doi.org/10.1107/S2056989018014846 Text en © Cano-Benítez et al. 2018 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/ |
spellingShingle | Research Communications Cano-Benítez, Cristian A. Metta-Magaña, Alejandro J. Duarte-Ruiz, Álvaro Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title | Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title_full | Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title_fullStr | Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title_full_unstemmed | Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title_short | Crystal structure at 100 K of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(II) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
title_sort | crystal structure at 100 k of bis[1,2-bis(diphenylphosphanyl)ethane]nickel(ii) bis(trifluoromethanesulfonate): a possible negative thermal expansion molecular material |
topic | Research Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218916/ https://www.ncbi.nlm.nih.gov/pubmed/30443405 http://dx.doi.org/10.1107/S2056989018014846 |
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