Calculation of the electron affinities of the chromophores involved in photosynthesis
Journal Article
·
· Journal of the American Chemical Society
- Univ. of Florida, Gainesville, FL (United States)
We examine the electron affinities (EA) of the postulated electron acceptor chromophores of the photosynthetic reaction center in R. Viridis. We estimate a difference of EA`s between bacteriochlorophyll-b and bacteriopheophytin-b of 0.19eV, in excellent agreement with the experimental value reported at 0.20 eV. We estimate this difference in situ at 0.42 eV, compared to an experimental estimate of 0.34 eV. These results support those of Thompson and Zerner that in the absence of specific interactions between BChl-L-side and the environment, electron transfer to BChl-L-side might not be directly involved in the overall electron transfer process. 42 refs., 2 figs., 3 tabs.
- OSTI ID:
- 249679
- Journal Information:
- Journal of the American Chemical Society, Vol. 118, Issue 17; Other Information: PBD: 1 May 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
ESR and ENDOR of bacteriopheophytin a radicals. Implications for bacteriochlorophylls in vivo
Theoretical studies of photosynthesis
Calculations of the ionization potentials and electron affinities of bacteriochlorophyll and bacteriopheophytin via ab initio quantum chemistry
Journal Article
·
Wed Jan 22 00:00:00 EST 1986
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:249679
Theoretical studies of photosynthesis
Miscellaneous
·
Mon Jan 01 00:00:00 EST 1990
·
OSTI ID:249679
Calculations of the ionization potentials and electron affinities of bacteriochlorophyll and bacteriopheophytin via ab initio quantum chemistry
Journal Article
·
Thu Mar 23 00:00:00 EST 2000
· Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory
·
OSTI ID:249679