(searched for: (10.5155/eurjchem.3.1.13-16.543))
European Journal of Chemistry, Volume 3; doi:10.5155/eurjchem.3.1.13-16.543
A novel fluorescent co-polymer with an organoboron quinolate and an E-BODIPY (BODIPY: 4,4-difluoro-4-bora-3a-4a-diaza-s-indacene) moiety was synthesized with the aim of producing a donor-acceptor polymeric system where the organoboron quinolate acts as the donor and the E-BODIPY moiety is the acceptor. The polymer has three prominent absorption bands: 264 nm (corresponding to the organoboron quinolate), 397 nm (corresponding to the organoboron quinolate and BODIPY) and 516 nm (corresponding to the E-BODIPY moiety). Excitation of the organoboron quinolate at 264 nm resulted in emission at 525 nm, giving a 261 nm Stokes shift. Energy transfer from the donor (organoboron quinolate) unit to the acceptor (BODIPY) explains the origin of this large Stokes shift.