Alkali metal and ammonium oxoperoxomolybdenum(VI) complexes derived from salicylaldehyde isonicotinoylhydrazone.

Abstract

The alkali metal and ammonium oxodiperoxomolybdenum(VI) complexes M[MoO(O₂)₂(Hsih)]. H₂O {M = K(1), Na(2),and NH₄(3)} and dioxoperoxomolybdenum(VI) complexes

M[MoO₂(O₂)(Hsih) (C₂H₅OH)].H₂O {M = K(4) and Na (5)} derived from salicylaldehyde isonicotinoylhydrazone (H₂sih) have been synthesized in aqueous-ethanol media. The structural assignment of the complexes has been carried out on the basis of molar conductance, magnetic moment, EPR data and IR spectroscopic studies. H₂sih coordinates to the metal centre in keto form as a monobasic bidentate ligand through phenolate oxygen atom and azomethine nitrogen atom. Peroxide is coordinated to the metal centre in a bidentate chelating fashion. All the complexes are proposed to have seven coordinate polyhedra around the molybdenum centre.