In the title hydrazone compound, C(15)H(12)Cl(2)N(2)O, the dihedral angle between the two benzene rings is 12.2 (2)°. In the crystal, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming forming C(4) chains propagating in [001].

A new series of quinoline hydrazone derivatives and their metal complexes have been synthesized and their biological properties have been evaluated against Mycobacterium tuberculosis (H37 RV strain). Most of the newly synthesized compounds displayed 100% inhibitory activity at a concentration of 6.25-25 μg/mL, against Mycobacterium tuberculosis. Fluorescence properties of all the synthesized co...

In the title complex, [Ni(C(14)H(12)N(3)O)(2)], the Ni(II) atom lies at the centre of a distorted octahedron formed by two tridentate hydrazone ligands. Inter-molecular hydrogen bonds of the type C-H⋯X (X = N, O) link the complexes into a two-dimensional network.

A simple strategy for the synthesis of the hitherto unreported 3-arylazo-4-phenyl-[1,2,4]triazepino[2,3-H]quinazoline-2,7(1H)-diones is described. Spectral data indicated that the studied compounds exist predominantly in the hydrazone tautomeric form. The antimicrobial activity of the newly synthesized compounds was also evaluated. The results indicated that some of these compounds have moderat...

The asymmetric unit of title complex, [Ni(C(20)H(12)BrClN(2)O(2))(C(5)H(5)N)], contains one complex with the central Ni atom in a slightly distorted square-planar environment, formed by the tridentate hydrazone and the monodentate pyridine ligands, with N atoms in a trans arrangement about the Ni atom.

The asymmetric unit of title complex, [Ni(C(20)H(13)BrN(2)O(2))(C(5)H(5)N)], contains two independent mol-ecules. In each mol-ecule, the central Ni(II) atom has a square-planar environment, formed by the tridentate hydrazone and the monodentate pyridine ligands, with the N atoms in a trans arrangement about the Ni(II) atom.