Authors : M. A. Katkar, S. N. Rao and H. D. Juneja
Page Nos : 264-273
Description :
ABSTRACT:
Some novel dioxo-molybdenum (VI) hydrazone complexes of Schiff base ligands having the general formula cis-[MoO2(L)(solv)] (where LH2 = Schiff base ligand and solv=ethanol) are synthesized, characterized by elemental, spectral analysis and structure and symmetry properties is determined using XRD X-ray powder diffractograms of the dioxo-molybdenum (VI) complexes of Schiff base derived from salicylaldehyde(sal) and substituted salicylaldehyde such as o-hydroxyacetophenone (hap); o-hydroxypropiophenone (hpp);
o-hydroxybenzophenone (hbp) with nicotinic acid hydrazide (NAH) have been studied and all were found crystalline. It is observed that the structures of all the complexes (1-4) belong to triclinic system. The lattice parameters and Miller’s indices were computed. The indexing and calculation of unit cell parameters were performed with the help of Powder-X Software. The 2 values, the relative intensity, the inter-planar distance along with Miller’s indices for corresponding angles are calculated for the complexes. After indexing the X-ray powder patterns and unit cell refinements, it is found that the complexes (1-4) are crystalline and adopt triclinic crystal system with P type lattice. This is expected for distorted octahedral complexes.
Keywords: Dioxo-molybdenum (VI) Hydrazone complexes, Schiff base ligands, XRD, Triclinic.
