First synthesis and electronic properties of diphenothiazine dumbbells bridged by heterocycles
作者:Adam W. Franz、Larisa N. Popa、Frank Rominger、Thomas J. J. Müller
DOI:10.1039/b814850c
日期:——
According to cyclic voltammetry, symmetrical dumbbell-shaped phenothiazine dyads bridged by heterocycles show intense electronic coupling between the redox-active phenothiazine moieties. Furthermore, the fluorescence of the pyridyl-bridged derivatives can be controlled by pH change giving reversibly switchable redox-active biselectrophore dyads.
Electronic coupling mediated by furan, thiophene, selenophene and tellurophene in a homologous series of organic mixed valence compounds
作者:Ann Christin Jahnke、Mariana Spulber、Markus Neuburger、Cornelia G. Palivan、Oliver S. Wenger
DOI:10.1039/c4cc03806a
日期:——
Charge delocalization in the mixed-valent monocationic forms of phenothiazine-decorated chalcogenophenes is explored by cyclic voltammetry, optical absorption and EPR spectroscopy. Single units of furan, thiophene, selenophene and tellurophene are found to mediate electronic coupling between the phenothiazines attached to their 2- and 5-positions roughly equally well. Electronic communication seems