The synthesis,1H NMR and IR study of [(n-Bu)4N]2 MO2O5(OC10H6O)2] and [(n-Bu)4N]2 [Mo4O10H6O)2 (OCH3)2]

The title organo-molybdate derivatives are synthesized and their IR, H-1 NMR spectra have been determined and the relations between the structures and the I H NMR and IR parameters have been studied. The results indicate that the red shift of the IR frequency of Mo-O-Mo in [(n-Bu)(4)N](2)[MO2O5(OC10H6O)(2)] (complex I) takes place to compare with that in [(n-Bu)(4)N](2)[MO4O10(OC10H6O2(OCH3)(2)] (complex II) and lower filed shift of H-1 NMR of the aromatic H atoms in complex U occurs as contrasted to that in the complex I. It is found also the organo-molybdate derivatives are very sensitive to the acidity of the chemical system.