Energy transfer and spectral dynamics of the three lowest energy Qy-states of the Fenna-Matthews-Olson antenna complex
Article Abstract:
The three lowest Qy-states of Chlorobium tepidum's Fenna-Matthews-Olson (FMO) bacteriochlorophyll alpha antenna complex lie at 823, 825 and 827 nm. This was gleaned from a study of the said states, which presented temperature-dependent spectral hole burning results. Results further indicated that the three lowest Qy-states were associated with the lowest energy state of the subunit of the FMO trimer. The study validated earlier findings by pump-probe experiments that there exists a lifetime of 2 ns for the 827 nm state in the low-temperature limit.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Using fractional desorption spectroscopy to determine kinetic parameters for surface processes
Article Abstract:
Fractional desorption spectroscopy (FDS) employs a modulated temperature program during the desorption experiment by using a modified Arrhenius analysis to extract kinetic parameters from desorption rate vs temperature data. It improves on other differential methods in two significant aspects. First, it allows the determination of the activation energy over a range of accessible surface concentrations in a single adsorption/desorption experiment. Second, it has a unique self-diagnostic and system-diagnostic abilities.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Toward level-to level energy transfers in photosynthesis: the Fenna-Matthews-Olson protein. A theoretical study of the excited states of chlorophyll a and pheophytin a
- Abstracts: Influence of spectral diffusion on the line shapes of single CdSe nanocrystallite quantum dots
- Abstracts: Electrochemical charging, countercation accommodation, and spectrochemical identity of microcrystalline solid cobalt hexacyanoferrate. part 2
- Abstracts: Effects of metal particle size in gas-phase hydrogenation of acetonitrile over silica-supported platinum catalysts