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2012 | 59 | 1 |

Tytuł artykułu

Femtosecond stimulated Raman spectroscopy of the dark S1 excited state of carotenoid in photosynthetic light harvesting complex

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Vibrational dynamics of the excited state in the light-harvesting complex (LH1) have been investigated by femtosecond stimulated Raman spectroscopy (FSRS). The native and reconstituted LH1 complexes have same dynamics. The ν1 (C=C stretching) vibrational mode of spirilloxanthin in LH1 shows ultrafast high-frequency shift in the S1 excited state with a time constant of 0.3 ps. It is assigned to the vibrational relaxation of the S1 state following the internal conversion from the photoexcited S2 state.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

59

Numer

1

Opis fizyczny

p.49-52,fig.,ref.

Twórcy

autor
  • Department of Physics, Tohoku University, Sendai, Japan
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Bibliografia

  • Cong H, Niedzwiedzki DM, Gibson GN, LaFountain AM, Kelsh RM, Gardiner AT, Cogdell RJ, Frank HA (2008) Ultrafast time-resolved carotenoid to-bacteriochlorophyll energy transfer in LH2 complexes from photosynthetic bacteria. J Phys Chem B 112: 10689-10703. 
  • Evans MB, Cogdell RJ, Britton G (1988) Determination of the bacteriochlorophyll: carotenoid ratiosof theB890 antenna complex of Rhodospirillum rubrum and the B800-850 complex of Rhodobacter spheroids. Biochem Biophys Acta 935: 292-298.
  • Frank HA, Cogdell RJ (1996) Carotenoids in photosynthesis. Photochem Photobioil 63: 257-264. 
  • Hashimoto H, Koyama Y (1989) Raman spectra of all-trans-β-carotene in the S1 and T1 states produced by direct photoexcitation. Chem Phys Lett 163: 251-256.
  • Kosumi D, Yanagi K, Nishio T, Hashimoto H, Yoshizawa M (2005) Excitation energy dependence of excited states dynamics in all-trans-carotenes determined by femtosecond absorption and fluorescence spectroscopy. Chem Phys Lett 408: 89-95.
  • Kosumi D, Abe K, Karasawa H, Fujiwara M, Cogdell RJ, Hashimoto H, Yoshizawa M (2010) Ultrafast relaxation kinetics of the dark S1 state in all-trans-β-carotene explored by one- and two-photon pump-probe spectroscopy. Chem Phys 373: 33-37.
  • Kosumi D, Maruta S, Horibe T, Fujii R, Sugisaki M, Cogdell RJ, Hashimoto H (2011) Ultrafast energy-transfer pathway in a purple-bacterial photosynthetic core antenna, as revealed by femtosecond time-resolved spectroscopy. Angew Chem Int Ed 50: 1097-1100. 
  • Nakagawa K, Suzuki S, Fujii R, Gardiner AT, Cogdell RJ, Nango M, Hashimoto H (2008) Probing the effect of the binding site on the electrostatic behavior of a series of carotenoid reconstituted into the light-harvesting 1 complex from purple photosynthetic bacterium Rhodospirillum rubrum detected by Stark spectroscopy. J Phys Chem B 112: 9467-9475. 
  • Nakamura R, Nakagawa K, Nango M, Hashimoto H, Yoshizawa M (2011) Dark excited states of carotenoid regulated by bacteriochlorophyll in photosynthetic light harvesting. J Phys Chem B 115: 3233-3239. 
  • Noguchi T, Kolaczkowski S, Arbour C, Aramaki S, Atkinson GH, Hayashi H, Tasumi M (1989) Resonance Raman spectrum of the excited 2Ag state of β-carotene. Photochem Photobiol 50: 603-609.
  • Polívka T, Sundström V (2004) Ultrafast dynamics of carotenoid excited states - from solution to natural and artificial systems. Chem Rev 104: 2021-2071. 
  • Saito S, Tasumi M (1983) Normal-coordinate analysis of ß-carotene isomers and assignments of the Raman and infrared bands. J Raman Spectrosc 14: 310-321.
  • Shim S, Mathies RA (2008) Development of a tunable femtosecond stimulated raman apparatus and its application to β-carotene. J Phys Chem B 112: 4826-4832. 
  • Wehling A, Walla PJ (2005) Time-resolved two-photon spectroscopy of photosystem I determines hidden carotenoid dark-state dynamics. J Phys Chem B 109: 24510-24516. 
  • Yoshizawa M, Kurosawa M (2000) Femtosecond time-resolved Raman spectroscopy using stimulated Raman scattering. Phys Rev A 61: 013808/1-6.
  • Yoshizawa M, Aoki H, Hashimoto H (2001) Vibrational relaxation of the 2Ag excited state in all-trans-β-carotene obtained by femtosecond time-resolved Raman spectroscopy. Phys Rev B 63: 180301/1-4.

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