RESUMO
In the title compound, C(14)H(10)N(4)O.H(2)O, the molecular components are linked into a three-dimensional framework by three hydrogen bonds, one each of the O-H...O, O-H...N and N-H...O types, weakly augmented by two C-H...O hydrogen bonds.
Assuntos
Isoniazida/análogos & derivados , Ácidos Isonicotínicos/química , Nitrilas/química , Cristalização , Cristalografia por Raios X , Ligação de Hidrogênio , Isoniazida/químicaRESUMO
In the title compound, C(15)H(15)N(3)Ox3H(2)O, two of the three water molecules exhibit disorder. The molecular components are linked into a three-dimensional framework by a combination of N-H...O, O-H...N and O-H...O hydrogen bonds.
Assuntos
Isoniazida/química , Ligação de Hidrogênio , Estrutura MolecularRESUMO
In the title compound, C11H10N4O.H2O, there are five independent hydrogen bonds, of O-H...O, O-H...N and N-H...O types, which link the components into complex sheets parallel to (001).
RESUMO
The molecules of 2-nitrobenzaldehyde isonicotinoylhydrazone, C13H10N4O3, (I), are linked into a three-dimensional framework by a combination of one N-H...N and three C-H...O hydrogen bonds. In the isomeric compound 3-nitrobenzaldehyde isonicotinoylhydrazone, (II), the molecules are linked into complex sheets by a combination of three hydrogen bonds, one each of the N-H...N, C-H...N and C-H...O types. The molecules of the third isomer, namely 4-nitrobenzaldehyde isonicotinoylhydrazone, (III), are linked into bilayers by a combination of one N-H...N, one C-H...N and two C-H...O hydrogen bonds. 2,4-Dinitrobenzaldehyde isonicotinoylhydrazone, (IV), crystallizes as a stoichiometric monohydrate, C13H9N5O5.H2O, and the molecular components are linked into a three-dimensional framework by a combination of O-H...O, O-H...N, N-H...O and three independent C-H...O hydrogen bonds.