Nursabah Sarikavakli

2-Hydroxy-imino-1-phenyl-ethanone thio-semicarbazone monohydrate.

In the title thiosemicarbazone derivative, C9H10N4OS·H2O, intramolecular N—H⋯N hydrogen bonds result in the formation of two nearly coplanar five- and six-membered rings, which are also almost coplanar with the adjacent phenyl ring. The oxime group has an E configuration and is involved in intermolecular O—H⋯O hydrogen bonding as a donor. In the crystal structure, intramolecular O—H⋯S and N—H⋯N and intermolecular O—H⋯O and N—H⋯S hydrogen bonds generate edge-fused R 2 2(8) and R 4 1(11) ring motifs. The hydrogen-bonded motifs are linked to each other to form a three-dimensional supramolecular network.

(E,E)-1-(2-Hydroxy-imino-1-phenyl-ethyl-idene)semicarbazide monohydrate.

In the title compound, C9H10N4O2·H2O, the oxime unit has an E configuration, and an intramolecular N—H⋯N hydrogen bond results in the formation of a planar five-membered ring, which is oriented with respect to the aromatic ring at a dihedral angle of 74.82 (17)°. In the crystal structure, intermolecular O—H⋯O and N—H⋯O hydrogen bonds link the molecules and R 2 2(8) ring motifs are apparent.

4-Meth-oxy-2-[(E)-(phenyl-imino)meth-yl]phenol.

In the molecule of the title compound, C14H13NO2, the two aromatic rings are oriented at a dihedral angle of 0.78 (20)°; with the exception of two methyl H atoms the molecule is essentially planar. The intramolecular O—H⋯N hydrogen bond results in the formation of a non-planar, six-membered ring, which adopts a flattened-boat conformation. In the crystal structure, intermolecular C—H⋯O hydrogen bonds link the molecules to form parallel networks. There is a C—H⋯π contact between the methyl group and the benzene ring. A π–π contact between the benzene and phenyl rings [centroid–centroid distance = 4.681 (5) Å] is also observed.