Preferred Label : Dexter excitation transfer;
Detailed label : Dexter (electron exchange) excitation transfer;
IUPAC definition : 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: \[k_{{ET}}\propto \frac{h}{2\ \pi }\ P {2}\ J\ {e} {\frac{-2\ r}{L}}\]
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.;
Origin ID : D01654;
See also
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: \[k_{{ET}}\propto \frac{h}{2\ \pi }\ P {2}\ J\ {e} {\frac{-2\ r}{L}}\]
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.
