A new vanadium(IV)-bridged polyoxotungstate containing mixed valence-antimony(III,V)

Abstract A new mixed-valence Sb V/III containing vanadium-substituted polyoxotungstate Na 10 [{Sb V (OH) 3 } 2 {V IV O(H 2 O)} 2 {Sb III W 9 O 33 } 2 ]·32H 2 O ( 1-Na ) has been synthesized by routine synthetic reaction and characterized by IR, XPS, elemental analysis. The polyoxoanion [{Sb V (OH) 3 } 2 {V IV O(H 2 O)} 2 {Sb III W 9 O 33 } 2 ] 10− ( 1 ) consists of two trilacunary species β -B-Sb III W 9 O 33 connected by two V IV O(H 2 O) groups and two Sb V (OH) 3 units. The cyclic voltammetry and catalytic activity of 1-Na for the oxidation of n -hexadecane under green condition have been measured.