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An ortho-rhom-bic polymorph of 3,4-di-amino-benzo-nitrile.

ABSTRACT: The title compound, C7H7N3, is an ortho-rhom-bic polymorph that crystallizes in the space group Pca21. The previously reported monoclinic form [Geiger & Parsons (2013 ?) Acta Cryst. E69, o452] crystallizes in the space group P21/c (Z = 4). In the crystal, two independent HN-H?N C hydrogen bonds link the mol-ecules into chains along the a-glide plane. Two further independent HN-H?NH2 hydrogen bonds join the chains, forming a three-dimensional network.

SUBMITTER: Geiger DK 

PROVIDER: S-EPMC3647854 | biostudies-other | 2013 May

REPOSITORIES: biostudies-other

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An ortho-rhom-bic polymorph of 3,4-di-amino-benzo-nitrile.

Geiger David K DK   Parsons Dylan E DE  

Acta crystallographica. Section E, Structure reports online 20130405 Pt 5

The title compound, C7H7N3, is an ortho-rhom-bic polymorph that crystallizes in the space group Pca21. The previously reported monoclinic form [Geiger & Parsons (2013 ▶) Acta Cryst. E69, o452] crystallizes in the space group P21/c (Z = 4). In the crystal, two independent HN-H⋯N C hydrogen bonds link the mol-ecules into chains along the a-glide plane. Two further independent HN-H⋯NH2 hydrogen bonds join the chains, forming a three-dimensional network. ...[more]

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