Modulating the Physical and Electronic Properties over Positional Isomerism: The Dispirofluorene–Dihydroindacenodithiophene (DSF-IDT) Family

J.-D. Peltier (1) , B. Heinrich (2) , B. Donnio (2) , O. Jeannin (1) , J. Rault-Berthelot (1) , Cyril Poriel (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg

We report the first studies on the intrinsic properties of a meta-substituted dihydroindacenodithienyl fragment and more generally the strong impact of positional isomerism on dihydroindacenodithiophene derivatives. The influence of the para and meta linkages has notably been highlighted not only for the electronic properties in solution (electrochemical properties, anodic polymerization, HOMO/LUMO energy levels, optical transitions, fluorescence spectra) but also on the physical properties in the solid state (molecular organization, crystallinity, and phase transitions). The positional isomerism hence appears to be a very efficient tool to drastically tune the properties of dihydroindacenodithiophene derivatives. © 2017 Wiley-VCH Verlag GmbH and Co. KGaA, Weinheim

Keywords: 3π–2spiro architecture; dispirofluorene–indacenodithiophenes; electropolymerization; isomerism; spiro compounds; structure–activity relationships; DiSpiroFluorene-Indacenodithiophenes; 3π-2spiro architecture; structure-activity relationships

Domains: Chemical Sciences

J.-D. Peltier, B. Heinrich, B. Donnio, O. Jeannin, J. Rault-Berthelot, et al.. Modulating the Physical and Electronic Properties over Positional Isomerism: The Dispirofluorene–Dihydroindacenodithiophene (DSF-IDT) Family. Chemistry - A European Journal, 2017, 23 (68), pp.17290-17303. ⟨10.1002/chem.201703320⟩. ⟨hal-01671610⟩