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Bis(melaminium) tartrate dihydrate.

ABSTRACT: In the title compound, 2C(3)H(7)N(6) (+)·C(4)H(4)O(6) (2-)·2H(2)O, in which the complete anion is generated by crystallographic twofold symmetry, there are O-H?O, N-H?O and N-H?N hydrogen-bonding inter-actions between neighbouring moieties, forming layers parallel to the bc plane. In addition, ?-? contacts [centroid-centroid distance = 3.6541?(9)?Å] between the six-membered rings of the melamine cations are observed.

SUBMITTER: Su H

PROVIDER: S-EPMC2968909 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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Bis(melaminium) tartrate dihydrate.

Su Hong H Lv Yao-Kang YK Feng Yun-Long YL

Acta crystallographica. Section E, Structure reports online 20090331 Pt 4

In the title compound, 2C(3)H(7)N(6) (+)·C(4)H(4)O(6) (2-)·2H(2)O, in which the complete anion is generated by crystallographic twofold symmetry, there are O-H⋯O, N-H⋯O and N-H⋯N hydrogen-bonding inter-actions between neighbouring moieties, forming layers parallel to the bc plane. In addition, π-π contacts [centroid-centroid distance = 3.6541 (9) Å] between the six-membered rings of the melamine cations are observed. ...[more]

PMID: 21582633

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