ROOM-TEMPERATURE PHOSPHORESCENCE OF 2,2'-BIQUINOLINE IN POLYMERIC MATRICES

Authors
CAZEAUDUBROCA C PEIRIGUA A NOUCHI G FADOUACH M CAZEAU P
Citation
C. Cazeaudubroca et al., ROOM-TEMPERATURE PHOSPHORESCENCE OF 2,2'-BIQUINOLINE IN POLYMERIC MATRICES, Proceedings of the Indian Academy of Sciences. Chemical sciences, 105(6), 1993, pp. 659-666
Citations number
19
Categorie Soggetti
Chemistry
Journal title
Proceedings of the Indian Academy of Sciences. Chemical sciences → ACNP
ISSN journal
02534134
Volume
105
Issue
6
Year of publication
1993
Pages
659 - 666
Database
ISI
SICI code
0253-4134(1993)105:6<659:RPO2IP>2.0.ZU;2-C
Abstract
An original and very strong long-lived emission of 2,2'-biquinoline is observed in hydrogen-bonded polymeric matrices only. This long-lived emission (tau(D) = 1 s) is ascribed to room-temperature phosphorescenc e (RTP) because of the large value of the decay time, the temperature- dependence, and the polarization results. The existence of hydrogen-bo nded complexes in the ground state is assumed to be the origin of the RTP. They involve changes in the conformation of the 2,2'-biquinoline.