Observation of proton-coupled electron transfer by transient absorption spectroscopy in a hydrogen-bonded, porphyrin donor-acceptor assembly

Article Abstract:

Proton-coupled electron transfer (PCET) kinetics of a zinc (II) porphyrin donor noncovalently bound to a naphthalene-diimide acceptor through an amidinium-carboxylate interface is investigated. The conclusion states that the importance of a proton network in controlling ET rates is becomiing more apparent as the strauctural details of the biological systems are revealed.

Hydrogen bonding, Hydrogen bonds

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Proton solvation and transport in aqueous and biomolecular systems: Insights from computer simulations

Article Abstract:

A robust and accurate computer simulation methodology is developed for studying the proton solvation and transport (PS&T) in a host of realistic physical and biological systems. The application of computer simulations have highlighted the roles of charge delocalization and Grotthuss shuttling, which is phenomenon unique in many ways to the excess proton on water.

Electrostatics, Computer simulation, Computer-generated environments, Solvation

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Ligand-field dependence of the excited state dynamics of hangman bisporphyrin dyad complexes

Article Abstract:

The first transient kinetic studies of Hangman porphyrin dyads which is was developed to interrogate the ligand-field dependent of photoinduced PCET versus excitation energy transfer and intersystem crossing in P[Zn.sup.II]-P[Fe.sup.III]-OH dyads where (P = porphyrin) is reported.

Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Porphyrins, Zinc compounds, Structure, Energy transformation

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