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Substituent effects on the decomposition of 1,2-dioxetanes: a Hammett correlation for substituted 1,6-diaryl-2,5,7,8-tetraoxabicyclo[4.2.0]octanes

✍ Scribed by A.Paul Schaap; Steven D. Gagnon; K.A. Zaklika

Publisher: Elsevier Science
Year: 1982
Tongue: French
Weight: 225 KB
Volume: 23
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)87500-0

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✦ Synopsis

Rates of decomposition for 1,2-dloxetanes obtained from addition of singlet oxygen to substituted 2,3-diaryl-1,4-dioxenes have been found to obey a Hammett relationship with p+ = -0 24 (n = 15, r = 0.92).

The results are taken as support for a brradrcal mechanism.

The chemlluminescent decomposition of 1,2-dioxetanes has generated considerable interest

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