4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)

4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)

In the title co-crystal, 2C7H4ClNO4·C4H4N2, the pyrazine molecule is located on an inversion centre, so that the asymmetric unit consists of one molecule of 4-chloro-2-nitrobenzoic acid and a half-molecule of pyrazine. The components are connected by O—H...N and C&...

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Main Authors: Kazuma Gotoh, Hiroyuki Ishida
Format: Article
Language:English
Published: International Union of Crystallography 2011-12-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536811046113
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spelling doaj-216dcbfad35846fdbf226d2048897daa2020-11-25T01:27:47ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682011-12-016712o3222o322210.1107/S16005368110461134-Chloro-2-nitrobenzoic acid–pyrazine (2/1)Kazuma GotohHiroyuki IshidaIn the title co-crystal, 2C7H4ClNO4·C4H4N2, the pyrazine molecule is located on an inversion centre, so that the asymmetric unit consists of one molecule of 4-chloro-2-nitrobenzoic acid and a half-molecule of pyrazine. The components are connected by O—H...N and C—H...O hydrogen bonds, forming a 2:1 unit. In the hydrogen-bonded unit, the dihedral angle between the pyrazine ring and the benzene ring of the benzoic acid is 16.55 (4)°. The units are linked by intermolecular C—H...O hydrogen bonds, forming a sheet structure parallel to (overline{1}04). A C—H...O hydrogen-bond linkage is also observed between these sheets.http://scripts.iucr.org/cgi-bin/paper?S1600536811046113
collection DOAJ
language English
format Article
sources DOAJ
author Kazuma Gotoh
Hiroyuki Ishida
spellingShingle Kazuma Gotoh
Hiroyuki Ishida
4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
Acta Crystallographica Section E
author_facet Kazuma Gotoh
Hiroyuki Ishida
author_sort Kazuma Gotoh
title 4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
title_short 4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
title_full 4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
title_fullStr 4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
title_full_unstemmed 4-Chloro-2-nitrobenzoic acid–pyrazine (2/1)
title_sort 4-chloro-2-nitrobenzoic acid–pyrazine (2/1)
publisher International Union of Crystallography
series Acta Crystallographica Section E
issn 1600-5368
publishDate 2011-12-01
description In the title co-crystal, 2C7H4ClNO4·C4H4N2, the pyrazine molecule is located on an inversion centre, so that the asymmetric unit consists of one molecule of 4-chloro-2-nitrobenzoic acid and a half-molecule of pyrazine. The components are connected by O—H...N and C—H...O hydrogen bonds, forming a 2:1 unit. In the hydrogen-bonded unit, the dihedral angle between the pyrazine ring and the benzene ring of the benzoic acid is 16.55 (4)°. The units are linked by intermolecular C—H...O hydrogen bonds, forming a sheet structure parallel to (overline{1}04). A C—H...O hydrogen-bond linkage is also observed between these sheets.
url http://scripts.iucr.org/cgi-bin/paper?S1600536811046113
work_keys_str_mv AT kazumagotoh 4chloro2nitrobenzoicacidamp8211pyrazine21
AT hiroyukiishida 4chloro2nitrobenzoicacidamp8211pyrazine21
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