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Ultrafast carotenoid-to-chlorophyll (Car-to-Chl) singlet excitation energy transfer in the cytochrome b6f (Cyt b6f) complex from Bryopsis corticulans is investigated by the use of femtosecond time-resolved absorption spectroscopy. For all-trans-α-carotene free in n-hexane, the lifetimes of the two low-lying singlet excited states, S1(2Ag−) and S2(1Bu+), are determined to be 14.3±0.4ps...
The excitation energy transfer between carotenoid and chlorophyll (Chl) in the cytochrome b6f complex from Bryopsis corticulans (B. corticulans), in which the carotenoid is 9-cis-α-carotene, was investigated by means of fluorescence excitation and sub-microsecond time-resolved absorption spectroscopies. The presence of efficient singlet excitation transfer from α-carotene to Chl a was found with...
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