The synthesis and electrochemistry of 2,S-dimethylazaferrocenes with heteroaryl bridges

نویسنده

  • Konrad Kowalski
چکیده

We report on the synthesis of complexes hav ing two equiva lent redox active 2,5-dimethylazafe rrocenyl entities connected by heteroaryl (heteroaryl = thiophenyl, bithiophenyl and pyridyl) bridges. The new compounds have been investigated by various electrochemical techniques including cyclic voltammetry (CV), differential pulse voltammetry (DPV) and square wave voltammetry (SW) and were found to exhibit two consecutive reversible or partially reversibl e one-e lectron oxidations. Comproportionation constants (/(c) ca lcu lated from 6£' /2 values indicate that the thermodynamic stability of their monoxidized form s exceeds those of analogous ferrocenes. In thi s paper we also report the X-ray crysta l structure and UV-Vis spectroelectrochemistry of parent 2,5-d imethylazaferrocene.

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تاریخ انتشار 2011