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Calculation of the isotope effect on the triplet lifetime of partially deuterated naphtalenes

✍ Scribed by B.R. Henry; W. Siebrand

Publisher: Elsevier Science
Year: 1969
Tongue: English
Weight: 207 KB
Volume: 3
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(69)80244-7

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✦ Synopsis

Differences in triplet lifetime between Q and B deuterated naphthalenes are calculated in good agreement with experiment. The calculation is based on vibronic spin-orbit coupling involving CR? and SO' states together ~5th CH ok-of-plane bending rrodes. Recently it has been observed [l-4] that the triplet lifetime of partially deuterated aromatic hydrocarbons depends not only on the number but also on the position of the deuterium substituents. For instance, a-D substituted naphthalenes decay . . -.

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