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Inverse deuterium isotope effect in the intersystem crossing of diphenylcarbene

✍ Scribed by J.G. Langan; E.V. Sitzmann; K.B. Eisenthal

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 375 KB
Volume: 124
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)85013-8

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✦ Synopsis

The singlet-to-triplet intersystem crossing rate ( kST) of diphenylcarbene (DPC) is found to exhibit an inverse isotope effect in various solvents. An off-resonance coupling model between the initial singlet state and a sparse triplet vibronic manifold accounts for kST showing both an inverse isotope effect in a g'ven solvent as well as an inverse energy gap effect in a solvent sertes.

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