Organometallic functionalized non-classical polyoxometalates: synthesis, characterization and electrochemical properties

Abstract

Two monomeric non-classical tellurium-containing heteropolymolybdate-supported metal carbonyl derivatives (NH₄)₅H₃{[Te₂Mo₁₂(OH)O₄₄][Mn(CO)₃]}·18H₂O (1) and (NH₄)₈{[Te₂Mo₁₂(OH)O₄₄][Re(CO)₃]}·13H₂O (2) have been successfully isolated in good yields. Compounds 1 and 2 are the first two examples of metal carbonyl derivatives of heteromolybdate with tellurium as the central atom. These two compounds have been thoroughly characterized by single-crystal X-ray diffraction, elemental analyses, X-ray powder diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and UV-Vis spectroscopy. The electrochemical catalytic activities of 1 and 2 including cyclic voltammetry and catalytic oxidation of nitrite have also been investigated.