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KMID : 1059519940380020160
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Journal of the Korean Chemical Society
1994 Volume.38 No. 2 p.160 ~ p.168
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Synthesis of Pentadentate Schiff Base Molybdenum(Ⅴ) Complexes and Their Electrochemical Properties in Aprotic Solvents
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Kim Sun-Sook
Chjo Ki-Hyung
Choi Yong-Kook
Jeong Byeong-Goo
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Abstract
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Pentadentate Schiff base molybdenum(Ⅴ) complexes such as [Mo(Ⅴ)O(Sal-DET)(NCS)] and [Mo(Ⅴ)O(Sal-DPT)(NCS)] were synthesized by Sabat method. The structure of these complexes were identified by elemental analysis, spectroscopy, and thermogravimetric analysis(T.G.A.). It was found that the mole ratio of Schiff base ligand to the complexes was found to be 1 : 1. The redox processes of the complexes were investigated by cyclic voltammetric and differential pulse polarographic technique in nonaqueous solvent containing 0. 1 M tetraethyl ammonium perchlorate(TEAP) as supporting electrolyte at glassy carbon electrode. It was found that diffusion controlled reduction processes of four steps with one electron were 2Mo(Ⅴ)↔ Mo(Ⅴ)Mo(Ⅳ) → 2Mo(Ⅳ), Mo(Ⅳ) → Mo(Ⅲ) → Mo(Ⅱ)
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