Synthesis and structural characterization of 3d-metal complexes of pyridine-4-carboxaldehyde thionicotinoyl hydrazone |
| |
Authors: | Nand K Singh Rajesh Tripathi |
| |
Institution: | (1) Department of Chemistry, Banaras Hindu University, 221005 Varanasi, India |
| |
Abstract: | Summary Pyridine-4-carboxaldehyde thionicotinoyl hydrazone (4-PTNH) forms 1:1 adducts with metal(II) halides and 1:2 complexes (metal to ligand) with metal(II) thiocyanates. Magnetic and spectral studies indicate polymeric octahedral geometry for M(4-PTNH)X2 (M=CoII or CuII, X=Cl; M=NiII, X=Cl, Br or I), five coordinate geometry for Co(4-PTNH)X2 (X=Br or I) and octahederal geometry for M(4-PTNH)2(NCS)2] (M=CoII or NiII). I.r. spectral studies show that 4-PTNH acts as a neutral bidentate ligand in all the complexes, the bonding sites being the thione sulphur and azomethine nitrogen. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|