نتایج جستجو برای: electron transfer

تعداد نتایج: 574468  

Journal: :Journal of the American Chemical Society 2012
Kiminori Maeda Matthew T J Lodge Jeffrey Harmer Jack H Freed Peter P Edwards

Electron transfer or quantum tunneling dynamics for excess or solvated electrons in dilute lithium-ammonia solutions have been studied by pulse electron paramagnetic resonance (EPR) spectroscopy at both X- (9.7 GHz) and W-band (94 GHz) frequencies. The electron spin-lattice (T(1)) and spin-spin (T(2)) relaxation data indicate an extremely fast transfer or quantum tunneling rate of the solvated ...

2012
Yi Rao Man Xu Steffen Jockusch Nicholas J. Turro Kenneth B. Eisenthal

Femtosecond time resolved vibrational sum frequency generation has been used for the first time to probe a chemical reaction involving interfacial molecules pumped into their excited electronic states. The ultrafast dynamics of electron transfer from ground state N,N-dimethylaniline (DMA) to photoexcited coumarin 314 at a water/DMAmonolayer interface was obtained. The forward electron transfer ...

Journal: :Bioelectrochemistry 2004
A Zöllner I Nogués A Heinz M Medina C Gómez-Moreno R Bernhardt

The mitochondrial steroid-hydroxylating system in vertebrates and the NADPH producing electron transfer chain in photosynthetic organisms contain structurally and functionally similar components. Examination of a potential hybrid reconstitution of the electron transfer chain between different components of both systems could help to improve our knowledge on protein-protein interaction and subse...

Journal: :The Journal of chemical physics 2013
Tiejun Xiao Xueyu Song

The reorganization energy of electron transfer processes in ionic fluids is studied under the linear response approximation using a molecule Debye-Hückel theory. Reorganization energies of some model reactants of electron transfer reactions in molten salts are obtained from molecular simulations and a molecule Debye-Hückel approach. Good agreements between simulation results and the results fro...

Journal: :Journal of the American Chemical Society 2008
Gemma C Solomon David Q Andrews Richard P Van Duyne Mark A Ratner

We present an interesting consequence of the differences between cross-conjugated and linearly conjugated molecules: the breakdown of conventional understanding of trends in molecular electron transfer. Interference effects are dominant in cross-conjugated molecules with unusual results: long molecules may have faster rates of electron transfer than short molecules, saturated molecules may have...

2010
A. K. Satpati

In the present work basic aspects of the bimolecular electron transfer processes have been studied by photochemical means and the heterogeneous electrochemical electron transfer processes have been applied in corrosion research and electroanalysis. Photoinduced electron transfer (ET) reactions were studied from the fluorescence quenching experiments using coumarins and quinones as the fluoropho...

Journal: :Frontiers in bioscience : a journal and virtual library 2004
Daisaku Ohta Masaharu Mizutani

Specific metabolic roles of P450-dependent monooxygenase systems are determined by enzymatic properties and substrate specificity of P450s, the terminal enzymes of the electron transfer chain. On the other hand, molecular diversity has also been reported for NADPH-cytochrome P450 reductase, cytochrome b5, and cytochrome b5 reductase in plants. Several lines of evidence indicate that the electro...

Journal: :The Journal of Physical Chemistry B 2000

Journal: :Physical Chemistry Chemical Physics 2012

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