Resonance energy transfer between diphenylmethylene and fluorescein at 77 K

Wu, Kun-Pin; Trozzolo, A. M.

doi:10.1021/j100505a009

Cited by 2 publications

(1 citation statement)

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“…It is confirmed that the T 1 state of DPC is efficiently quenched by Rh6G or RhB. Wu and Trozzolo observed resonance energy transfer from DPC to fluorescein by means of fluorescence decay measurement and determined the value of R 0 to be 6.1 nm . We used Rh6G or RhB as the energy acceptor instead of fluorescein, because a considerable amount of emission from fluorescein mixes into the fluorescence of DPC.…”

Section: Resultsmentioning

confidence: 81%

Resonance Energy Transfer from the Lowest Excited Triplet State of Diphenylcarbene to Dye Molecules: Utilization for the Characterization of the Triplet−Triplet Fluorescence

1996

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Triplet-triplet (T 1 f T 0 ) fluorescence spectra and decay curves of diphenylcarbene (DPC) in the absence and in the presence of dye molecules such as Rhodamine 6G and Rhodamine B were measured in several organic glasses at 77 K. In the absence of dye molecules, the T 1 f T 0 fluorescence signals exhibit biexponential decay with the lifetimes of ∼30 and ∼140 ns, which are attributable to the independent T 1 f T 0 emission from the individual T 1 sublevels of DPC. In the presence of dye molecules, fluorescence decay signals of both fast and slow components were well analyzed in terms of resonance energy transfer of Förster type from DPC to dye molecule. The reaction scheme of the energy transfer and their various parameters are discussed on the basis of the independent T 1 f T 0 emission from the individual T 1 sublevels of DPC at low temperature.

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Section: Resultsmentioning

confidence: 81%