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2-Amino-4-(4-bromophenyl)-8-trifluoromethyl-3,4-dihydropyrimido[1,2-a][1,3,5]triazin-6(5H)-onePart 13 in the series `Fused heterocyclic systems with an s-triazine ring'. For Part 12, see Dolzhenko et al. (2008b).

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Author(s): Anton V. Dolzhenko | Nikhil Sachdeva | Geok Kheng Tan | Lip Lin Koh | Wai Keung Chui

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 65;
Issue: 4;
Start page: o684;
Date: 2009;
Original page

ABSTRACT
The title compound, C13H9BrF3N5O, crystallizes with two independent molecules in the asymmetric unit. The pyrimidine rings of the molecules are planar [maximum deviations 0.053 (3) and 0.012 (3) Å], while the triazine rings adopt flattened half-boat conformations with the p-bromophenyl rings in the flagpole positions. The crystal packing is stabilized by a three-dimensional network of intermolecular N—H...N, N—H...O and N—H...F hydrogen bonds.

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