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Unprecedented chemiluminescence behaviour during peroxyoxalate chemiluminescence of oxalates with fluorescent or electron‐donating aryloxy groups
Author(s) -
Koike Ryu,
Kato Yuji,
Motoyoshiya Jiro,
Nishii Yoshinori,
Aoyama Hiromu
Publication year - 2006
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.901
Subject(s) - peroxyoxalate , chemiluminescence , fluorescence , chemistry , excimer , fluorophore , photochemistry , oxalate , excited state , intermolecular force , inorganic chemistry , molecule , organic chemistry , physics , quantum mechanics , nuclear physics
A series of diaryl and bis(4‐styrylphenyl) oxalates with electron‐donating substituents or fluorescent moieties were subjected to the peroxyoxalate chemiluminescence (PO‐CL) reaction, some of which were found to behave in a unprecedented manner. The reaction of bis( p ‐methyoxyphenyl) oxalate, as a representative example, emits light due not only to the emission from the externally added excited fluorophore, but also from the presumable excimer of p ‐methoxyphenol. Also, during the reaction of the bis(4‐styrylphenyl) oxalates, the emission based on the fluorescence as well as the excimer of the eliminating group were observed. These experimental results suggest that such emitting species would be formed by an intra‐ and intermolecular electronic interaction with a high‐energy intermediate, such as a dioxetanone. Copyright © 2006 John Wiley & Sons, Ltd.