FLUORESCENCE QUENCHING OF AZOALKANES BY SOLVENT-ASSISTED RADIATIONLESS DEACTIVATION INVOLVING C-H BONDS

Authors
NAU WM ADAM W SCAIANO JC
Citation
Wm. Nau et al., FLUORESCENCE QUENCHING OF AZOALKANES BY SOLVENT-ASSISTED RADIATIONLESS DEACTIVATION INVOLVING C-H BONDS, Chemical physics letters, 253(1-2), 1996, pp. 92-96
Citations number
29
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
253
Issue
1-2
Year of publication
1996
Pages
92 - 96
Database
ISI
SICI code
0009-2614(1996)253:1-2<92:FQOABS>2.0.ZU;2-V
Abstract
Apparently innocuous solvents such as methylene chloride and chlorofor m efficiently quench the fluorescence of azoalkane 1 with rate constan ts of up to 10(8) M(-1) s(-1) and deuterium effects of approximate to 3.2. This novel fluorescence quenching mechanism by C-H bonds is attri buted to radiationless deactivation promoted by covalent hydrogen bond ing interactions.