5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine

The title compound, C(39)H(26)F(6)N(2)O(2), showed two melting transitions 477.4 and 506.5 K in a differential scanning calorimetry (DSC) study. The first of these can be attributed to a melting phase transition arising from the rotation of two trifluoro­methyl groups. In the crystal structure, both...

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Detalles Bibliográficos
Autores principales: Ono, Katsuhiko, Tomura, Masaaki, Saito, Katsuhiro
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959745/
https://www.ncbi.nlm.nih.gov/pubmed/21581042
http://dx.doi.org/10.1107/S160053680803420X
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author Ono, Katsuhiko
Tomura, Masaaki
Saito, Katsuhiro
author_facet Ono, Katsuhiko
Tomura, Masaaki
Saito, Katsuhiro
author_sort Ono, Katsuhiko
collection PubMed
description The title compound, C(39)H(26)F(6)N(2)O(2), showed two melting transitions 477.4 and 506.5 K in a differential scanning calorimetry (DSC) study. The first of these can be attributed to a melting phase transition arising from the rotation of two trifluoro­methyl groups. In the crystal structure, both trifluoro­methyl groups are disordered over two sites with occupancy factors of 0.660 (17) and 0.340 (17) for the major and minor orientations, respectively. The introduction of trifluoro­methyl groups inhibits π-stacking between the diaza­fluorene (cyclo­penta­[2,1-b:3,4-b’]dipyridine) units. Three short F⋯O contacts between 2.80 (3) and 2.95 (1) Å are observed in the crystal structure.
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spelling pubmed-29597452010-12-30 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine Ono, Katsuhiko Tomura, Masaaki Saito, Katsuhiro Acta Crystallogr Sect E Struct Rep Online Organic Papers The title compound, C(39)H(26)F(6)N(2)O(2), showed two melting transitions 477.4 and 506.5 K in a differential scanning calorimetry (DSC) study. The first of these can be attributed to a melting phase transition arising from the rotation of two trifluoro­methyl groups. In the crystal structure, both trifluoro­methyl groups are disordered over two sites with occupancy factors of 0.660 (17) and 0.340 (17) for the major and minor orientations, respectively. The introduction of trifluoro­methyl groups inhibits π-stacking between the diaza­fluorene (cyclo­penta­[2,1-b:3,4-b’]dipyridine) units. Three short F⋯O contacts between 2.80 (3) and 2.95 (1) Å are observed in the crystal structure. International Union of Crystallography 2008-10-25 /pmc/articles/PMC2959745/ /pubmed/21581042 http://dx.doi.org/10.1107/S160053680803420X Text en © Ono et al. 2008 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 Organic Papers
Ono, Katsuhiko
Tomura, Masaaki
Saito, Katsuhiro
5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title_full 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title_fullStr 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title_full_unstemmed 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title_short 5,5-Bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5H-cyclo­penta­[2,1-b:3,4-b’]dipyridine
title_sort 5,5-bis(4-methoxy­phen­yl)-2,8-bis­[3-(trifluoro­meth­yl)phen­yl]-5h-cyclo­penta­[2,1-b:3,4-b’]dipyridine
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959745/
https://www.ncbi.nlm.nih.gov/pubmed/21581042
http://dx.doi.org/10.1107/S160053680803420X
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AT tomuramasaaki 55bis4methoxyphenyl28bis3trifluoromethylphenyl5hcyclopenta21b34bdipyridine
AT saitokatsuhiro 55bis4methoxyphenyl28bis3trifluoromethylphenyl5hcyclopenta21b34bdipyridine

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