RT Journal Article
T1 Efficient electron delocalization mediated by aromatic homoconjugation in 7,7-diphenylnorbornane derivatives
A1 Osío Barcina, José De Jesús
A1 Colorado, María del Rosario
A1 Mba, Miriam
A1 Gómez Aspe, Rafael
A1 Herrero-García, Noelia
AB Efficient electron delocalization by aromatic homoconjugated 7,7-diphenylnorbornane (DPN) in alternated homoconjugated- conjugated block copolymers and reference compounds is revealed by photophysical and electrochemical measurements. The synthesis of the polymers was achieved by Suzuki polycondensation reaction. Effective electron delocalization by DPN is demonstrated by the significant red shifts observed in the absorption and emission spectra and the variation of the energy band gap of the polymers and monomeric model compounds in comparison to a series of oligophenylenes used as references (p-quaterphenyl, p-terphenyl, and biphenyl). The electron delocalization is also clearly demonstrated by the lower oxidation potential measured for homoconjugated model compound in comparison to p-terphenyl. The results show that the electron delocalization caused by two homoconjugated aryl rings is comparable to the effect produced by one conjugated aryl ring.
PB American Chemical Society
YR 2009
FD 2009
LK https://hdl.handle.net/20.500.14352/105749
UL https://hdl.handle.net/20.500.14352/105749
LA eng
NO Ministerio de Educación y Ciencia
DS Docta Complutense
RD 10 abr 2025