N—H⃛N hydrogen bonding in 4,6-di­phenyl-2-pyrimidinyl­amine isolated from the plant Justicia secunda (Acanthaceae)

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The title compound, C16H13N3, isolated from Justicia secunda (Acanthaceae), comprises two mol­ecules (which differ slightly in conformation) in the asymmetric unit of space group P . Intermolecular Namino—H…Npyrm interactions (Npyrm is a pyrimidine ring N atom) involve only one of the two donor amino H atoms and pyrimidine N atoms per mol­ecule, forming dimeric units via (8) rings, with N…N distances of 3.058 (2) and 3.106 (3) Å, and N—H…N angles of 172.7 (18) and 175.8 (17)°. The dimers are linked by C—H…(arene) contacts, with an H…centroid distance of 2.77 Å and a C—­H…centroid angle of 141°.

Document Type: Research Article

DOI: http://dx.doi.org/10.1107/S0108270104002902

Publication date: April 1, 2004

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