4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]

In the title salt, C(20)H(22)N(2) (2+)·2C(12)H(4)N(4) (−), the cations and anions stack along the b axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14 (4)°. Centrosymmetrically r...

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Autor principal: Liu, Guang-Xiang
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979426/
https://www.ncbi.nlm.nih.gov/pubmed/21579443
http://dx.doi.org/10.1107/S1600536810017113
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author Liu, Guang-Xiang
author_facet Liu, Guang-Xiang
author_sort Liu, Guang-Xiang
collection PubMed
description In the title salt, C(20)H(22)N(2) (2+)·2C(12)H(4)N(4) (−), the cations and anions stack along the b axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14 (4)°. Centrosymmetrically related anions form dimers by π–π stacking inter­actions, with centroid–centroid separations of 3.874 (4) Å. The crystal packing is stabilized by inter­columnar C—H⋯N hydrogen bonds.
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spelling pubmed-29794262010-12-30 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)] Liu, Guang-Xiang Acta Crystallogr Sect E Struct Rep Online Organic Papers In the title salt, C(20)H(22)N(2) (2+)·2C(12)H(4)N(4) (−), the cations and anions stack along the b axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14 (4)°. Centrosymmetrically related anions form dimers by π–π stacking inter­actions, with centroid–centroid separations of 3.874 (4) Å. The crystal packing is stabilized by inter­columnar C—H⋯N hydrogen bonds. International Union of Crystallography 2010-05-15 /pmc/articles/PMC2979426/ /pubmed/21579443 http://dx.doi.org/10.1107/S1600536810017113 Text en © Guang-Xiang Liu 2010 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
Liu, Guang-Xiang
4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title_full 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title_fullStr 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title_full_unstemmed 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title_short 4,4′-Dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
title_sort 4,4′-dimethyl-1,1′-(p-phenyl­enedimethyl­ene)dipyridinium bis­[7,7,8,8-tetra­cyano­quinodimethanide(1−)]
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979426/
https://www.ncbi.nlm.nih.gov/pubmed/21579443
http://dx.doi.org/10.1107/S1600536810017113
work_keys_str_mv AT liuguangxiang 44dimethyl11pphenylenedimethylenedipyridiniumbis7788tetracyanoquinodimethanide1

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