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Melaminium nitrate-melamine-water (1/1/1).

ABSTRACT: In the crystal structure of the title salt, C(3)H(7)N(6) (+)·NO(3) (-)·C(3)H(6)N(6)·H(2)O, the asymmetric unit consists of two neutral melamine (1,3,5-triazine-2,4,6-triamine) mol-ecules, two melaminium cations, two nitrate anions and two solvent water mol-ecules. One of the nitrate anions is disordered over two sets of positions, with a refined occupancy ratio of 0.909?(3):0.091?(3). The cations and neutral mol-ecules are approximately planar, with maximum deviations of 0.018?(2), 0.024?(2), 0.019?(2) and 0.007?(2)?Å for each, respectively. In the crystal structure, melaminium cations and netural melamine mol-ecules self-assemble via N-H?N hydrogen bonds to form a supra-molecular hexa-gonal-shaped motif. In addition, the nitrate anions and water mol-ecules are connected by N-H?O hydrogen bonds to form a three-dimensional network.

SUBMITTER: Adam F

PROVIDER: S-EPMC3009350 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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Melaminium nitrate-melamine-water (1/1/1).

Adam Farook F Lin Sek Kei SK Hello Kasim Mohammed KM Hemamalini Madhukar M Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20101031 Pt 11

In the crystal structure of the title salt, C(3)H(7)N(6) (+)·NO(3) (-)·C(3)H(6)N(6)·H(2)O, the asymmetric unit consists of two neutral melamine (1,3,5-triazine-2,4,6-triamine) mol-ecules, two melaminium cations, two nitrate anions and two solvent water mol-ecules. One of the nitrate anions is disordered over two sets of positions, with a refined occupancy ratio of 0.909 (3):0.091 (3). The cations and neutral mol-ecules are approximately planar, with maximum deviations of 0.018 (2), 0.024 (2), 0. ...[more]

PMID: 21589188

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