Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)

We have encountered two polymorphs of the title compound, C(24)H(16)B(2)OS(2), both of which display almost the same unit-cell parameters. Compound (I) crystallizes in the non-centrosymmetric space group P2(1) with four mol­ecules in the asymmetric unit. These mol­ecules are related by pseudosymmetr...

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Autores principales: Radtke, Julian, Lerner, Hans-Wolfram, Bolte, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2019
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6505595/
https://www.ncbi.nlm.nih.gov/pubmed/31110812
http://dx.doi.org/10.1107/S205698901900522X
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author Radtke, Julian
Lerner, Hans-Wolfram
Bolte, Michael
author_facet Radtke, Julian
Lerner, Hans-Wolfram
Bolte, Michael
author_sort Radtke, Julian
collection PubMed
description We have encountered two polymorphs of the title compound, C(24)H(16)B(2)OS(2), both of which display almost the same unit-cell parameters. Compound (I) crystallizes in the non-centrosymmetric space group P2(1) with four mol­ecules in the asymmetric unit. These mol­ecules are related by pseudosymmetry. As a result, the space group looks like P2(1)/c, but the structure cannot be refined successfully in that space group. Compound (II) on the other hand crystallizes in the centrosymmetric space group P2(1)/c with only two mol­ecules in the asymmetric unit. The crystals studied for (I) and (II) were both non-merohedral twins.
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spelling pubmed-65055952019-05-20 Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene) Radtke, Julian Lerner, Hans-Wolfram Bolte, Michael Acta Crystallogr E Crystallogr Commun Research Communications We have encountered two polymorphs of the title compound, C(24)H(16)B(2)OS(2), both of which display almost the same unit-cell parameters. Compound (I) crystallizes in the non-centrosymmetric space group P2(1) with four mol­ecules in the asymmetric unit. These mol­ecules are related by pseudosymmetry. As a result, the space group looks like P2(1)/c, but the structure cannot be refined successfully in that space group. Compound (II) on the other hand crystallizes in the centrosymmetric space group P2(1)/c with only two mol­ecules in the asymmetric unit. The crystals studied for (I) and (II) were both non-merohedral twins. International Union of Crystallography 2019-04-25 /pmc/articles/PMC6505595/ /pubmed/31110812 http://dx.doi.org/10.1107/S205698901900522X Text en © Radtke et al. 2019 http://creativecommons.org/licenses/by/4.0/ 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/4.0/
spellingShingle Research Communications
Radtke, Julian
Lerner, Hans-Wolfram
Bolte, Michael
Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title_full Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title_fullStr Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title_full_unstemmed Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title_short Polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
title_sort polymorphism and pseudosymmetry of 10,10′-oxybis(9-thia-10-hydro-10-boraanthracene)
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6505595/
https://www.ncbi.nlm.nih.gov/pubmed/31110812
http://dx.doi.org/10.1107/S205698901900522X
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