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A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate
The title compound, C(14)H(12)N(4)O(6)·C(3)H(7)NO, is a monoclinic polymorph of an already published structure [Baughman et al. (2004 ▶). Acta Cryst. C60, 103–106]. In the previously reported structure, the compound crystallized in the triclinic space group P [Image: see text] (Z = 2), whereas the s...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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International Union of Crystallography
2011
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3239067/ https://www.ncbi.nlm.nih.gov/pubmed/22199915 http://dx.doi.org/10.1107/S1600536811050161 |
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author | Han, Hongfei Liu, Yaohua |
author_facet | Han, Hongfei Liu, Yaohua |
author_sort | Han, Hongfei |
collection | PubMed |
description | The title compound, C(14)H(12)N(4)O(6)·C(3)H(7)NO, is a monoclinic polymorph of an already published structure [Baughman et al. (2004 ▶). Acta Cryst. C60, 103–106]. In the previously reported structure, the compound crystallized in the triclinic space group P [Image: see text] (Z = 2), whereas the structure reported here is monoclinic (P2(1) /n, Z = 4). In both forms, two intramolecular hydrogen bonds result in the formation of a fairly planar hydrazone skeleton (r.m.s. deviations for all non-H atoms = 0.127 Å for the monoclinic from and 0.131 Å for the triclinic form) and each molecule is hydrogen bonded to one solvent molecule. The principal difference between the two forms lies in the different orientation of the two molecules. In the monoclinic form, the two molecules are almost coplanar [dihedral angle = 3.27 (2)°], whereas in the triclinic form the two molecules are almost mutulally perpendicular (dihedral angle = 85.3°). |
format | Online Article Text |
id | pubmed-3239067 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-32390672011-12-23 A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate Han, Hongfei Liu, Yaohua Acta Crystallogr Sect E Struct Rep Online Organic Papers The title compound, C(14)H(12)N(4)O(6)·C(3)H(7)NO, is a monoclinic polymorph of an already published structure [Baughman et al. (2004 ▶). Acta Cryst. C60, 103–106]. In the previously reported structure, the compound crystallized in the triclinic space group P [Image: see text] (Z = 2), whereas the structure reported here is monoclinic (P2(1) /n, Z = 4). In both forms, two intramolecular hydrogen bonds result in the formation of a fairly planar hydrazone skeleton (r.m.s. deviations for all non-H atoms = 0.127 Å for the monoclinic from and 0.131 Å for the triclinic form) and each molecule is hydrogen bonded to one solvent molecule. The principal difference between the two forms lies in the different orientation of the two molecules. In the monoclinic form, the two molecules are almost coplanar [dihedral angle = 3.27 (2)°], whereas in the triclinic form the two molecules are almost mutulally perpendicular (dihedral angle = 85.3°). International Union of Crystallography 2011-11-25 /pmc/articles/PMC3239067/ /pubmed/22199915 http://dx.doi.org/10.1107/S1600536811050161 Text en © Han and Liu 2011 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 Han, Hongfei Liu, Yaohua A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title | A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title_full | A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title_fullStr | A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title_full_unstemmed | A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title_short | A monoclinic polymorph with Z = 4 of (E)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone N,N-dimethylformamide monosolvate |
title_sort | monoclinic polymorph with z = 4 of (e)-2,4-dihydroxyacetophenone 2,4-dinitrophenylhydrazone n,n-dimethylformamide monosolvate |
topic | Organic Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3239067/ https://www.ncbi.nlm.nih.gov/pubmed/22199915 http://dx.doi.org/10.1107/S1600536811050161 |
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