Add time:07/19/2019         Source:sciencedirect.com

The ligand 4-phenyl(2-methoxybenzoyl)-3-thiosemicarbazide (Hpmt), forms isostructural [Mn(pmt)2(o-phen)] (1) and [Zn(pmt)2(o-phen)] (2) complexes containing o-phen as coligand which have been characterized by analytical, spectroscopic (IR, UV–Vis, NMR), magnetic susceptibility, TGA and single crystal X-ray data. Both complexes crystallize in monoclinic systems with the space group P2/n. The complexes have distorted octahedral geometry around the metal center. The ligand in the complexes is coordinated through the deprotonated hydrazinic nitrogen and carbonyl oxygen. The hydrazinic nitrogen coordinates with a shorter M–N distance than the o-phen nitrogen and bond lengths in the chelate ring systems are intermediate between single and double bond distances, suggesting considerable delocalization of charge. There is a good agreement between the geometrical parameters obtained by X-ray crystallography to those generated by DFT method. The thermal degradations of complexes 1 and 2 have been investigated by thermogravimetric analyses which indicate that the final residues left are Mn(NCO)2 and Zn(NCSNH)2. The small HOMO–LUMO energy gap suggests low excitation energy for the complexes.

We also recommend Trading Suppliers and Manufacturers of 4-METHOXYBENZOYL ISOTHIOCYANATE (cas 16778-84-0). Pls Click Website Link as below: cas 16778-84-0 suppliers