S. Haddad, R. Al-Far
Oct 1, 2003
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0
Influential Citations
8
Citations
Journal
Acta Crystallographica Section E: Crystallographic Communications
Abstract
In the title compound, [C5H6N3]Br·H2O, the 2,6-diaminopyridine is protonated on the ring N atom. The cation is planar. The moieties are held together by extensive hydrogen bonding and by π–π interactions. The bromide ion is hydrogen bonded, as acceptor, to two H2O molecules, with an average Br⋯H—O(H2O) distance of 3.322 (11) A, to the ring N atom Br⋯N—H(NH) 3.353 (3) A, and to four amino N atoms, with an average Br⋯H—N(NH2) 3.63 (14) A. The water molecule bonds, as acceptor, to the pyridine N atom O⋯H—N(NH2) 2.583 (5) A. The closest π–π interaction is between pyridine ring planes, with an interplanar spacing 3.358 A apart.