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KMID : 1059519950390010047
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Journal of the Korean Chemical Society
1995 Volume.39 No. 1 p.47 ~ p.56
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Synthesis of Tridentate Schiff base Molybdenum(Ⅴ) Complexes and Their Electrochemical Properties in Aprotic Solvents
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Choi Yong-Kook
Song Mi-Sook
Rim Chae-Pyeong
Chjo Ki-Hyung
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Abstract
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Tridentate Schiff base molybdenum(V) complexes such as [Mo(Ⅴ)2O(SOHB)4],[Mo(Ⅴ)2O3(SOIP)2(NCS)2] and [Mo(Ⅴ)2O3(SOTB)2(H20)2](SOHB: Salicylidene-o-imino hydroxybenzene, SOIP; Salicylidene-o-imino pyridine, SOTB; Salicylidene-o-imino thiolbenzene) were synthesized and identified by elemental analysis, spectroscopy, and thermogravimetric analysis (TGA). It was found that the mole ratio of Schiff base ligand to the metal in these complexes is 1 : 1 or 1 : 2. The redox processes of the complexes were investigated by cyclic voltammetric and differential pulse polarographic techniques in nonaquous solvent containing 0.1 M tetraethylammonium perchlorate (TEAP) as supporting electrolyte at glassy carbon electrode. It was found that diffusion controlled reduction processes with one electron were Mo(Ⅴ)Mo(Ⅴ)e-→Mo(Ⅴ)Mo(Ⅳ)e-→Mo(Ⅳ)Mo(Ⅳ)e-→Mo(Ⅳ)Mo(Ⅲ).
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