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Photophysical characterization of the B800-depleted light harvesting complex B850 of Rhodobacter sphaeroides
- Source :
- Chemical Physics Letters. 301:537-545
- Publication Year :
- 1999
- Publisher :
- Elsevier BV, 1999.
-
Abstract
- From the isolated LH2 antenna of Rhodobacter sphaeroides , called B800-850, the bacteriochlorophyll a pigment complement BChl-B800, mainly responsible for the 800 nm absorption band, has been extracted. The remaining complex, with the main NIR absorption peaking at 850 nm (termed pure (p) B850), has a small but distinct sideband in the 800 nm region and contributes there about 20% to the total absorption of the integral B800-850 antenna. In the latter the energy transfer 800→850 nm is per se (at least) biphasic with the pB850 intra-aggregate relaxation as the fastest component known so far ( k ≈10 13 s −1 ).
- Subjects :
- Materials science
biology
Sideband
Relaxation (NMR)
General Physics and Astronomy
biology.organism_classification
Photochemistry
Light-harvesting complex
Rhodobacter sphaeroides
Pigment
Absorption band
visual_art
visual_art.visual_art_medium
Physical and Theoretical Chemistry
Absorption (electromagnetic radiation)
Ultrashort pulse
Subjects
Details
- ISSN :
- 00092614
- Volume :
- 301
- Database :
- OpenAIRE
- Journal :
- Chemical Physics Letters
- Accession number :
- edsair.doi...........54bbe6ff7505b1007130513809387640