▪ Abstract Recent progress in two-dimensional and three-dimensional electron and X-ray
crystallography of Photosystem II (PSII) core complexes has led to major advances in the …

▪ Abstract Recent applications of density functional theory to biologically relevant metal
centers are reviewed. The emphasis is on reaction mechanisms, structures, and modeling …

The genesis of the exploration of electron transfer (ET) in the condensed phase dates back
to the origins of chemistry in the nineteenth century. In 1808 Humphry Davy observed [1] that …

The mechanism of charge recombination of the S2QA-state in photosystem II was
investigated by modifying the free energy gap between the quinone acceptor QA and the …

The theoretical relationships between the fluorescence and photochemical yields of PS II
and the fraction of open reaction centers are examined in a general model endowed with the …

The effects of multiple changes in hydrogen bond interactions between the electron donor, a
bacteriochlorophyll dimer, and histidine residues in the reaction center from Rhodobacter …

Finite difference solutions to the Poisson equation are used to characterize electrostatic
interactions in reaction centers from Rhodopseudomonas viridis. A sizable potential gradient …

The light driven electron transfer reactions of photosynthesis are best characterized in the
reaction centers of purple nonsulfur bacteria such as Rhodobacter sphaeroides. These …

Sunday, February 20, 2022 103a donor is controlled by its redox and electronic properties,
which in turn are controlled almost exclusively by the surrounding protein matrix. In this …

Femtosecond transient absorption spectra on reaction centers from Rhodobacter
sphaeroides wild type have been recorded with high time and wavelength resolution and a …