()-2-{[(2-Amino-phen-yl)imino]-meth-yl}-5-(benz-yl-oxy)phenol and ()-3-benz-yl-oxy-6-{[(5-chloro-2-hy-droxy-phen-yl)amino]-methyl-idene}cyclo-hexa-2,4-dien-1-one.

The title Schiff base compounds, CHNO (I) and CHClNO (II), were synthesized from 4-benz-yloxy-2-hy-droxy-benzaldehyde by reaction with 1,2-di-amino-benzene for (I), and condensation with 2-amino-4-chloro-phenol for (II). Compound (I) adopts the enol-imine tautomeric form with an configuration about the C=N imine bond. In contrast, the -hy-droxy Schiff base (II), is in the keto-imine tautomeric form with a configuration about the CH-NH bond.

Crystal structure, Hirshfeld surface analysis and anti-oxidant capacity of 2,2'-{(1,1')-[1,2-phenyl-enebis(aza-nylyl-idene)]bis-(methanylyl-idene)}bis-(5-benz-yloxy)phenol.

The whole mol-ecule of the title Schiff base compound, CHNO, is generated by mirror symmetry, with the mirror bis-ecting the central benzene ring. It was synthesized the condensation reaction of 1,2-di-amine-benzene with 4-benz-yloxy-2-hy-droxy-benzaldehyde. The mol-ecule is V-shaped and there are two intra-molecular O-H⋯N hydrogen bonds present forming (6) ring motifs.

Crystal structures and anti-oxidant capacity of ()-5-benz-yloxy-2-{[(4-chloro-phen-yl)imino]-meth-yl}phenol and ()-5-benz-yloxy-2-({[2-(1-indol-3-yl)eth-yl]iminium-yl}meth-yl)phenolate.

The title Schiff base compounds, CHClNO (I) and CHNO (II), were synthesized the condensation reaction of 2-amino-4-chloro-phenol for (I), and 2-(2,3-di-hydro-1-indol-3-yl)ethan-1-amine for (II), with 4-benz-yloxy-2-hy-droxy-benzaldehyde. In both compounds, the configuration about the C=N imine bond is . Neither mol-ecule is planar.

Bis(benzene-1,2-diamine-κ(2)N,N')(sulfato-κO)copper(II) monohydrate.

The title complex, [Cu(SO(4))(C(6)H(8)N(2))(2)]·H(2)O, was obtained under hydro-thermal conditions. The Cu(II) ion is five-coordinated in a distorted square-pyramidal manner by four N atoms from two benzene-1,2-diamine ligands at the base and one O atom from a monodentate sulfate anion at the apex of the coordination polyhedron. N-H⋯O hydrogen bonding between the amino functions and the sulfate groups leads to the formation of layers parallel to (001).

Bis{N-[5-(4-methoxy-phen-yl)-1,3,4-oxa-diazol-2-yl]ethanimidamidato}copper(II).

The title compound, [Cu(C(11)H(11)N(4)O(2))(2)], was prepared by solvothermal synthesis using 2-amino-5-(4-methoxy-phen-yl)-1,3,4-oxadiazole and copper sulfate penta-hydrate in an acetonitrile solution. The Cu(II) atom lies on an inversion center and is four-coordinated in a slightly distorted square-planar geometry by four N atoms of the ligands obtained from the formation of a bond between the amine N atom of the oxadiazole mol-ecule and the nitrile C atom of the solvent. In the crystal structure an inter-molecular N-H⋯N hydrogen bond links inversion-related mol-ecules.

Octa-kis[2,2',5,5'-tetra-thia-fulvalenium(0.5+)] bis-[hexa-molybdate(2-)] acetonitrile solvate.

The asymmetric unit of the title compound, (C(6)H(4)S(4))(8)[Mo(6)O(19)](2)·CH(3)CN, contains two halves of two centrosymmetric [Mo(6)O(19)](2-) hexa-molybdate anions, which are each built up from six distorted MoO(6) octa-hedra sharing common edges and one common vertex at the central O atom, six tetra-thia-fulvalene cations (three of which are located on mirror planes) to balance the charge and a half of an acetonitrile solvent mol-ecule, likewise located on a mirror plane. The two central hexa-molybdate O atoms occupy special positions 2a and 2d, respectively. The cations and anions are inter-linked through C-H⋯O contacts.