https://doi.org/10.1351/goldbook.D01654
Excitation transfer
occurring as a result of an electron exchange mechanism. It requires an overlap of the wavefunctions of the energy donor and the energy acceptor. It is the dominant mechanism in
triplet-triplet energy transfer
. The transfer
rate constant
, kET, is given by: kETh2 π P2 J e2 rL where r is the distance between donor (D) and acceptor (A), L and P are constants not easily related to experimentally determinable quantities, and J is the
spectral overlap
integral. For this mechanism the spin conservation rules are obeyed.
See also:
radiative energy transfer
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2235 [Terms] [Paper]