A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine

The title chloro-substituted 2-amino­pyrimidine, C(4)H(3)Cl(2)N(3), is a second monoclinic polymorph of this compound which crystallizes in the space group C2/c. The structure was previously reported [Clews & Cochran (1948 ▶). Acta Cryst. 1, 4–11] in the space group P21/a. There are two crystall...

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Autores principales: Fun, Hoong-Kun, Chantrapromma, Suchada, Jana, Subrata, Chakrabarty, Rinku, Goswami, Shyamaprosad
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960503/
https://www.ncbi.nlm.nih.gov/pubmed/21201653
http://dx.doi.org/10.1107/S1600536808023714
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author Fun, Hoong-Kun
Chantrapromma, Suchada
Jana, Subrata
Chakrabarty, Rinku
Goswami, Shyamaprosad
author_facet Fun, Hoong-Kun
Chantrapromma, Suchada
Jana, Subrata
Chakrabarty, Rinku
Goswami, Shyamaprosad
author_sort Fun, Hoong-Kun
collection PubMed
description The title chloro-substituted 2-amino­pyrimidine, C(4)H(3)Cl(2)N(3), is a second monoclinic polymorph of this compound which crystallizes in the space group C2/c. The structure was previously reported [Clews & Cochran (1948 ▶). Acta Cryst. 1, 4–11] in the space group P21/a. There are two crystallographically independent mol­ecules in the asymmetric unit and each mol­ecule is planar. The dihedral angle between the two pyrimidine rings is 30.71 (12)°. In the crystal structure, mol­ecules are linked via N—H⋯N inter­molecular hydrogen bonds, forming infinite one-dimensional chains along the a axis. These hydrogen bonds generate R (2) (2)(8) ring motifs. The chains are stacked along the b axis.
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spelling pubmed-29605032010-12-30 A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine Fun, Hoong-Kun Chantrapromma, Suchada Jana, Subrata Chakrabarty, Rinku Goswami, Shyamaprosad Acta Crystallogr Sect E Struct Rep Online Organic Papers The title chloro-substituted 2-amino­pyrimidine, C(4)H(3)Cl(2)N(3), is a second monoclinic polymorph of this compound which crystallizes in the space group C2/c. The structure was previously reported [Clews & Cochran (1948 ▶). Acta Cryst. 1, 4–11] in the space group P21/a. There are two crystallographically independent mol­ecules in the asymmetric unit and each mol­ecule is planar. The dihedral angle between the two pyrimidine rings is 30.71 (12)°. In the crystal structure, mol­ecules are linked via N—H⋯N inter­molecular hydrogen bonds, forming infinite one-dimensional chains along the a axis. These hydrogen bonds generate R (2) (2)(8) ring motifs. The chains are stacked along the b axis. International Union of Crystallography 2008-08-06 /pmc/articles/PMC2960503/ /pubmed/21201653 http://dx.doi.org/10.1107/S1600536808023714 Text en © Fun 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
Fun, Hoong-Kun
Chantrapromma, Suchada
Jana, Subrata
Chakrabarty, Rinku
Goswami, Shyamaprosad
A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title_full A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title_fullStr A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title_full_unstemmed A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title_short A second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
title_sort second monoclinic polymorph of 2-amino-4,6-dichloro­pyrimidine
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960503/
https://www.ncbi.nlm.nih.gov/pubmed/21201653
http://dx.doi.org/10.1107/S1600536808023714
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