Recovery of the distribution of interchromophoric distances in a donor-acceptor coumarin supermolecule by time-resolved energy-transfer measurements
作者： M. Kaschke , B. Valeur , J. Bourson , N.P. Ernsting
DOI: 10.1016/0009-2614(91)87100-P
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摘要: Abstract By excitation and probe spectroscopy, we have measured the intramolecular electronic energy transfer in a bichromophoric coumarin. Here, linkage between two constituent chromophores consists of highly flexible chain containing CC CO bonds. The proceeds on time scale several picoseconds. experimental results kinetic measurements can be well described by dipole-dipole interaction model which takes into account Gaussian distribution distances chromophores. Average chromophore separations, as estimates for width distribution, derived from experiment.
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