B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser

B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser

B-side electron transfer in wide-type reaction centers from Rhodobacter sphaeroides 2.4.1 was investigated by broadband real-time vibrational spectroscopy. HB− was found to be generated in less than 50 fs after the excitation of 6.3 fs laser pulse, and its decay lifetime was determined to be ~280fs...

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Main Authors: Tamiaki H., Watanabe K., Du J., Kobayashi T.
Format: Article
Language:English
Published: EDP Sciences 2013-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20134108012
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spelling doaj-b0cbfbadd9944018a73a5c21880c8aa62021-08-02T11:22:38ZengEDP SciencesEPJ Web of Conferences2100-014X2013-03-01410801210.1051/epjconf/20134108012B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse LaserTamiaki H.Watanabe K.Du J.Kobayashi T.B-side electron transfer in wide-type reaction centers from Rhodobacter sphaeroides 2.4.1 was investigated by broadband real-time vibrational spectroscopy. HB− was found to be generated in less than 50 fs after the excitation of 6.3 fs laser pulse, and its decay lifetime was determined to be ~280fs and 1.4ps, which is extremely fast compared with the one occurring in A-side. Considering the ultrafast of the generation time of HB−, BB rather than P was found to be the initial electron donor to the H. Hence, the initial charge-separated state is determined to be BB+HB− state. http://dx.doi.org/10.1051/epjconf/20134108012
collection DOAJ
language English
format Article
sources DOAJ
author Tamiaki H.
Watanabe K.
Du J.
Kobayashi T.
spellingShingle Tamiaki H.
Watanabe K.
Du J.
Kobayashi T.
B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
EPJ Web of Conferences
author_facet Tamiaki H.
Watanabe K.
Du J.
Kobayashi T.
author_sort Tamiaki H.
title B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
title_short B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
title_full B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
title_fullStr B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
title_full_unstemmed B-side Electron Transfer in Bacterial Photosynthetic Reaction Centers Revealed by a Few-Cycle Pulse Laser
title_sort b-side electron transfer in bacterial photosynthetic reaction centers revealed by a few-cycle pulse laser
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2013-03-01
description B-side electron transfer in wide-type reaction centers from Rhodobacter sphaeroides 2.4.1 was investigated by broadband real-time vibrational spectroscopy. HB− was found to be generated in less than 50 fs after the excitation of 6.3 fs laser pulse, and its decay lifetime was determined to be ~280fs and 1.4ps, which is extremely fast compared with the one occurring in A-side. Considering the ultrafast of the generation time of HB−, BB rather than P was found to be the initial electron donor to the H. Hence, the initial charge-separated state is determined to be BB+HB− state.
url http://dx.doi.org/10.1051/epjconf/20134108012
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AT watanabek bsideelectrontransferinbacterialphotosyntheticreactioncentersrevealedbyafewcyclepulselaser
AT duj bsideelectrontransferinbacterialphotosyntheticreactioncentersrevealedbyafewcyclepulselaser
AT kobayashit bsideelectrontransferinbacterialphotosyntheticreactioncentersrevealedbyafewcyclepulselaser
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