Optically Active Linear and Hyperbranched Polythiophenes Bearing BINOL Derivatives Emitting Circularly Polarized Luminescence
Luminophores are key components in several optoelectronic applications and the development of methods for the synthesis of novel highly efficient luminophores is an important objective. Herein, new linear and hyperbranched polythiophenes bearing BINOL moieties through alkylene spacers were prepared by the electrochemical oxidation of the corresponding terthiophenes. These polythiophenes emitted orange-colored circularly polarized luminescence with dimensionless Kuhn's anisotropy factors, gCPL, of the order of 10−4 in chloroform in the photoexcited state.