Multicomponent Redox Systems Consisting of N-Ferrocenoyl-N'-ferrocenyl (ethylferrocene) Thiourea and Its Copper (Ⅱ) Complexes

Abstract

Abstract: The two non-equivalent ferrocene fragments N-ferrocenoyl-N'-ferrocenyl thiourea (HL₁) and N-ferrocenoyl-N'-ethylferrocene thiourea (HL₂)are prepared by the addition of ferrocenoyl isothiocyanate with aminoferrocene and aminoethylferrocene respectively. The copper (Ⅱ) complexes of these ligands are isolated and have been characterized by elementary analyses and spectral (IR, ¹HNMR) measurements. The redox behavior of the two ligands and their complexes is investigated by cyclic voltammeter.The legends(HL₁,HL₂) undergo two distinct and consecutive reversible oneelectron oxidation processes centred on the two non-equivalent ferrocene fragments, but in complex Cu(HL₁)₂Cl₂, it is able to release two electrons at the same potentials.The two ferrocenyl groups change to equivalent ferrocene fragments.In the complex Cu(L₂)Ac,it is still able to release two electrons at distinctly different potentials,E_p₁, and E_p₂.E_p₁, and E_p₂ values are chaning to close, such an approch is quite interesting. Some factors affecting the magnitude of the potential separation △E(△E=E_p₂-E_p₁) are envisaged.

Key words: Aeylthiourea, Ferrocene derivative, Multicomponent redox system, Cyclic voltammetry

TrendMD:

WANG ji-Tao, XU Yu-Ming, YUAN Yao-Feng, WANG Bin, YANG Yong-An, YE Su-Ming . Multicomponent Redox Systems Consisting of N-Ferrocenoyl-N'-ferrocenyl (ethylferrocene) Thiourea and Its Copper (Ⅱ) Complexes[J]. Chem. J. Chinese Universities, 1995, 16(9): 1415.

References

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