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Interference, fluctuation, and alternation of electron tunneling in protein media. 1. Two tunneling routes in photosynthetic reaction center alternate due to thermal fluctuation of protein…
TLDR
Electron tunneling routes for the electron transfer from the bacteriopheophytin anion to the primary quinone in the bacterial photosynthetic reaction center of Rhodobactor sphaeroides and a linear relationship exists between the value of /T(DA)/ and the inverse of the degree of destructive interference Q for a wide range of values are found.
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Theory of Excitation Energy Transfer in the Intermediate Coupling Case. II. Criterion for Intermediate Coupling Excitation Energy Transfer Mechanism and Application to the Photosynthetic Antenna…
We developed a theory of excitation energy transfer (EET) which is applicable to all the values of the coupling strength U in the presence of homogeneous and inhomogeneous broadening. In constructing…
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Fluctuating hydration structure around nanometer-size hydrophobic solutes. I. Caging and drying around C60 and C60H60 spheres.
The hydration structure around nanometer-size hydrophobic solutes is studied with molecular dynamics simulation by taking aqueous solutions of C60 and C60H60 as examples. In the hydration shell…
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Regioselective ring-emitting esterification on azacyclohexane quaternary salts: a DFT and synthetic study for covalent fixation of electrostatic polymer self-assemblies.
TLDR
An exclusive ring-emitting esterification was proposed theoretically and confirmed experimentally to produce a simple ester group, in contrast to less robust amino-ester linkages through an alternative ring-opening process with strained five-membered ammonium salts.
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ESA-CF Synthesis of Linear and Cyclic Polymers Having Densely Appended Perylene Units and Topology Effects on Their Thin-Film Electron Mobility
A pair of topologically contrastive, linear and cyclic polymers having densely appended perylene diimide (PDI) units have been prepared by means of an electrostatic self-assembly and covalent…
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Improved Variational Master Equation Theory for the Excitation Energy Transfer
In photosynthetic light harvesting systems, the strength of the excitation energy transfer (EET) interaction between pigments and the strength of the exciton–phonon coupling are of a comparable…
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Theoretical Model of Exciton States and Ultrafast Energy Transfer in Heliobacterial Type I Homodimeric Reaction Center.
  • A. Kimura, S. Itoh
  • Physics, Chemistry
    The journal of physical chemistry. B
  • 16 November 2018
TLDR
The model indicates that the stronger transition-dipole moment on BChl- g contributes to the faster energy transfer due to the higher coherency of the delocalized exciton states on hRC compared to that on PSI that arranges Chl- a at almost homologous locations.
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Theory of Excitation Transfer in the Intermediate Coupling Case
Theory of excitation energy transfer (EET) between donor and acceptor molecules in the intermediate coupling case is constructed. This theory interpolates theories of exciton and Forster mechanism.…
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Theory of Excitation Energy Transfer in the Intermediate Coupling Case of Clusters
Previously we presented a unified theory of excitation energy transfer (EET) in dimers, which is applicable to the intermediate coupling case by self-consistently solving the stochastic Liouville…
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Advanced theory of excitation energy transfer in dimers.
TLDR
This new theory is formulated on the basis of the generalized master equation (GME), without using physically unclear assumptions, and it is found that the excitonic coupling strengths of criteria between excitation and partial exciton and between hot transfer and hopping mechanisms are reduced by a factor of 2.
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