ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 29, Number 3
JKCSEZ 29(3)
June 20, 1985 

Dioxobis(3-methoxysalicyaldehydato)molybdeum(Ⅵ) complex has been synthesized by reactions of 3-methoxysalicylaldehyde and ammonium paramolybdate in methanol solution. With appropriate primary amine, the resulting complex gave schiff-base complexes, MoO2(CH3O-sal-N-R)2 in which C=O oxide ligands had been replaced by nitrogen. The properties and possible molecular structure of these complexes were discussed by elemental analysis, spectroscopic studies and electric conductivities measurements. It was found that the Mo(Ⅵ) complexes contain a cis-MoO2 group since their infrared spectra two Mo=O band at about 900cm-1 and the combining ratios for MoO2-ligand are 1 : 2. Also, electronic spectra of molybdenyl complexes assigned to ligand-to-metal charge transfer transition. All of these complexes are yellow or orange, depolar compound and slightly soluble in alcohol, dichloromethane, chloroform and N,N-dimethylformamide.