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4-Amino-2,8-dimethyl-6H-pyrimido[1,2-a][1,3,5]triazin-6-one.

ABSTRACT: In the title compound, C(8)H(9)N(5)O, the mean planes through the pyrimidine and triazine rings form a dihedral angle of 2.83?(16)°. The amino group adopts a trigonal-planar configuration and forms an intra-molecular resonance-assisted N-H?O=C hydrogen bond with the carbonyl group. In the crystal, mol-ecules are linked via inter-molecular N-H?N hydrogen bonds into chains of C(2) (2)(6)[R(2) (2)(6)] motif. The molecules form two types of sheet parallel to (201) and (01), respectively.

SUBMITTER: Sachdeva N

PROVIDER: S-EPMC3007556 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature

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4-Amino-2,8-dimethyl-6H-pyrimido[1,2-a][1,3,5]triazin-6-one.

Sachdeva Nikhil N Dolzhenko Anton V AV Tan Geok Kheng GK Koh Lip Lin LL Chui Wai Keung WK

Acta crystallographica. Section E, Structure reports online 20100717 Pt 8

In the title compound, C(8)H(9)N(5)O, the mean planes through the pyrimidine and triazine rings form a dihedral angle of 2.83 (16)°. The amino group adopts a trigonal-planar configuration and forms an intra-molecular resonance-assisted N-H⋯O=C hydrogen bond with the carbonyl group. In the crystal, mol-ecules are linked via inter-molecular N-H⋯N hydrogen bonds into chains of C(2) (2)(6)[R(2) (2)(6)] motif. The molecules form two types of sheet parallel to (201) and (01), respectively. ...[more]

PMID: 21588357

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