The rate of
intersystem crossing is relatively large if the
radiationless transition involves a change of orbital type.
Note:
A typical case is the transition from the lowest
singlet state to the
tripletmanifold,
e.g.,
1π,π* →
3n, π* is faster than
1π, π* →
3π, π* and
1n, π* →
3π, π* is faster than
1n, π* →
3n, π*.
Source:
PAC, 2007, 79, 293
(Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006))
on page 331
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
