Peltier Jean-David, Heinrich Benoît, Donnio Bertrand, Jeannin Olivier, Rault-Berthelot Joëlle, Poriel Cyril
UMR CNRS 6226-ISCR, Université de Rennes 1, 35042, Rennes cedex, France.
Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, 67034, Strasbourg Cédex 2, France.
Chemistry. 2017 Dec 6;23(68):17290-17303. doi: 10.1002/chem.201703320. Epub 2017 Nov 14.
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.
我们报道了关于间位取代二氢茚并二噻吩片段本征性质的首批研究，更广泛地说，是关于位置异构对二氢茚并二噻吩衍生物的强烈影响。对位和间位连接的影响不仅在溶液中的电子性质（电化学性质、阳极聚合、HOMO/LUMO能级、光学跃迁、荧光光谱）方面得到了显著体现，而且在固态的物理性质（分子排列、结晶度和相变）方面也有体现。因此，位置异构似乎是一种非常有效的工具，可以极大地调节二氢茚并二噻吩衍生物的性质。
