Optical properties of a donor–acceptor-substituted “hemi-cruciform” catechol derivative
摘要:
The optical properties of a novel catechol derivative have been studied: a very large solvatochromism of the emission spectra was observed, revealing an important low-energy intra-molecular charge-transfer. From our experiment, a chemical structure-polarizability relationship is studied according to the Lippert-Mataga correlation and compared to results obtained previously for analogous compounds. This synthetic strategy complemented with characterizations and theoretical analysis allows one to design specific charge-transfer compounds to be used as nonlinear chromophores and ligands in multifunctional complexes. (C) 2010 Elsevier B.V. All rights reserved.