Vibronic Coupling in Dicyano-Complex-Bridged Mixed-Valence Complexes. Relaxation of Vibronic Constraints in Systems with Degenerate Bridging-Ligand and Electron-Transfer Excited States

2000 ◽  
Vol 39 (3) ◽  
pp. 437-446 ◽  
Author(s):  
Ariel V. Macatangay ◽  
John F. Endicott
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Mixed Valence ◽  
Vibronic Coupling ◽  
Bridging Ligand

Intramolecular Electron Transfer Mediated by a Tetrathiafulvalene Bridge in a Purely Organic Mixed-Valence System

2003 ◽  
Vol 42 (24) ◽  
pp. 2765-2768 ◽  
Author(s):  
Nicolas Gautier ◽  
Frédéric Dumur ◽  
Vega Lloveras ◽  
José Vidal-Gancedo ◽  
Jaume Veciana ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Mixed Valence ◽  
Intramolecular Electron Transfer

Dynamics of intermolecular electron transfer from amines to the excited states of 9-fluorenone

2013 ◽  
Vol 264 ◽  
pp. 1-11 ◽  
Author(s):  
Vaishali Samant ◽  
Mahendra Varne ◽  
Dipak K. Palit
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Intermolecular Electron Transfer

scholarly journals Pronounced effects of grinding on rates of intramolecular electron transfer in mixed-valence 1′,2′,1‴,2‴-tetranaphthylmethyl- and 1′,3′,1‴,3‴-tetranaphthylmethyl-biferrocenium triiodides

2003 ◽  
Vol 679 (2) ◽  
pp. 181-193 ◽  
Author(s):  
Teng-Yuan Dong ◽  
Mei-Ching Lin ◽  
Liangshiu Lee ◽  
Ching-Hung Cheng ◽  
Shie-Ming Peng ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Mixed Valence ◽  
Intramolecular Electron Transfer

Excited states of analogue models of M-bacteriochlorophylls (M = Mg, Zn) in the photosynthetic reaction center: a time-dependent density functional theory study

2002 ◽  
Vol 06 (10) ◽  
pp. 617-625 ◽  
Author(s):  
Yoichi Yamaguchi
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Density Functional ◽  
Photosynthetic Reaction Center ◽  
Excited Electron ◽  
Time Dependent ◽  
Analogue Model ◽  
Functional Theory ◽  
Special Pair ◽  
Dependent Density

Using time-dependent density functional theory (TDDFT), the excited states of the analogue model Mg -bacteriochlorophyll b - imidazole ( BChl -Im) dimer (P) for a special pair in the photosynthetic reaction center (RC) of Rhodopseudomonas (Rps.) viridis were examined. The calculated low-lying excited states and optimal geometries are in good agreement with experimental data. The order of the lowest unoccupied molecular orbital (LUMO) energies of P, the monomeric "accessory" BChl -Im (B), and bacteriopheophytin b ( H ) indicates the possibility of the light-induced electron transfer from P to H via B. The Im ligand of B destabilizes Goutermann's four-orbitals of BChl by 0.3-0.4 eV. With no energetic difference in the LUMOs between H and BChl , the Im ligands of P and B play an important role in providing a greater energetic gradient to the LUMOs along with the pathway for the excited-electron transfer in RC, resulting in the reduced reverse electron transfer from H to P (via B). Thus it is expected that the asymmetric Mg -Im interactions will directly affect the pathway of the excited-electron transfer. Using the deformed heterodimer (P') formed by the BChl halves with and without Im as the primary donor model, its cation radical P'+ was calculated as to whether the experimental asymmetric spin-density distribution can reproduce. The excited states of the analogue model Zn - BChl -Im dimer for a special pair in RC of the recently discovered Acidiphilium rubrum were also examined for a comparison with P.

A Unified Electron Transfer Model for the Different Precursors and Excited States of the Hydrated Electron

2001 ◽  
Vol 105 (37) ◽  
pp. 8434-8439 ◽  
Author(s):  
Tak W. Kee ◽  
Dong Hee Son ◽  
Patanjali Kambhampati ◽  
Paul F. Barbara
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Hydrated Electron ◽  
Transfer Model

REACTIVITY OF EXCITED STATES OF FLAVIN AND 5-DEAZAFLAVIN IN ELECTRON TRANSFER REACTIONS

1981 ◽  
Vol 33 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Rainer Traber ◽  
Ekehardt Vogelmann ◽  
Siegfried Schreiner ◽  
Tilmann Werner ◽  
Horst E. A. Kramer
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Transfer Reactions ◽  
Electron Transfer Reactions
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