Three pulse echo peak shift measurements on the B820 subunit of LH1 of Rhodospirillum rubrum
نویسندگان
چکیده
Ž . Three pulse photon echo peak shift measurements 3PEPS of the detergent isolated B820 subunit of the light harvesting complex of Rhodospirillum rubrum are presented and compared with 3PEPS data for the LH1 complex of Rhodobacter sphaeroides. The comparison suggests that the 90 fs component of LH1 3PEPS is indeed the energy transfer component. The striking similarity between 3PEPS of LH1 and B820 subunit also suggests that excitation is delocalized over only a dimer unit. q 1997 Elsevier Science B.V.
منابع مشابه
Three Pulse Echo Peak Shift Measurements and ab initio Excited State Calculations of Photosynthetic Light Harvesting Function
The analysis of three pulse echo peak shift (3PEPS) data for LHI of Rhodobacter sphaeroides is discussed in comparison with that of the B820 subunit of Rhodospirillum rubrum. We report also ab initio molecular orbital (CIS/6-3IG*) calculations of electronic couplings for supermolecule subunits of the light harvesting 2 complex (LH2) of Rhodopseudomonas acidophila.
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