Donor-π-acceptor-π-donor ferrocenyl benzothiadiazoles: synthesis, structure, and properties

A series of donor-pi-acceptor-pi-donor type of ferrocenyl substituted benzothiadiazoles were designed, and synthesized by the Pd-catalyzed Sonogashira coupling reaction. The electrochemical, photophysical, thermal, and structural properties of ferrocenyl substituted benzothiadiazoles are discussed. These properties show strong donor-acceptor interaction. (C) 2012 Elsevier Ltd. All rights reserved.