One at a Time: Intramolecular Electron-Transfer Kinetics in Small Laccase Observed during Turnover

2014 ◽  
Vol 136 (7) ◽  
pp. 2707-2710 ◽  
Author(s):  
Ankur Gupta ◽  
Thijs J. Aartsma ◽  
Gerard W. Canters
Keyword(s):  
Electron Transfer ◽  
Intramolecular Electron Transfer ◽  
Electron Transfer Kinetics

Temperature effects on intramolecular electron transfer kinetics under "normal", "inverted", and "nearly optimal" conditions

1993 ◽  
Vol 97 (19) ◽  
pp. 5065-5069 ◽  
Author(s):  
Jan Kroon ◽  
Henk Oevering ◽  
Jan W. Verhoeven ◽  
John M. Warman ◽  
Anna M. Oliver ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Temperature Effects ◽  
Intramolecular Electron Transfer ◽  
Optimal Conditions ◽  
Electron Transfer Kinetics

Intramolecular Electron Transfer Kinetics of a Synthetic Flavocytochromec

1997 ◽  
Vol 119 (2) ◽  
pp. 435-436 ◽  
Author(s):  
Mark B. Twitchett ◽  
Juan C. Ferrer ◽  
Prabha Siddarth ◽  
A. Grant Mauk
Keyword(s):  
Electron Transfer ◽  
Intramolecular Electron Transfer ◽  
Electron Transfer Kinetics ◽  
Kinetics Of

scholarly journals Which bridge to cross, which mountain to climb – Supramolecular Photocatalysis Outpacing Conventional Catalysis

2021 ◽  
Author(s):  
Linda Zedler ◽  
Pascal Wintergerst ◽  
Alexander Mengele ◽  
Carolin Müller ◽  
Chunyu Li ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photocatalytic Activity ◽  
Intramolecular Electron Transfer ◽  
Design Strategies ◽  
Electron Transfer Kinetics ◽  
Tert Butyl ◽  
Bridging Ligand ◽  
The One ◽  
Rate Limiting

Unequivocal assignment of rate limiting steps in supramolecular photocatalysts is of utmost importance to rationally optimize photocatalytic activity. By spectroscopic and catalytic analysis of a series of three structurally similar [(tbbpy) 2 Ru-BL-Rh(Cp*)Cl] 3+ photocatalysts just differing in the central part (alkynyl, triazole or phenazine) of the bridging ligand (BL) we were able to derive design strategies for improved photocatalytic activity of this class of compounds (tbbpy = 4,4´-tert-butyl- 2,2´-bipyridine, Cp* = pentamethylcyclopentadienyl). Most importantly, not the rate of the transfer of the first electron towards the Rh III center but rather the rate at which a two-fold reduced Rh I species is generated can directly be correlated with the observed photocatalytic formation of NADH from NAD + . Interestingly, the complex which exhibited the fastest intramolecular electron transfer kinetics for the first electron is not the one that allowed the fastest photocatalysis. With the photocatalytically most efficient alkynyl linked system, it was even possible to overcome the rate of thermal NADH formation. Moreover, for this photocatalyst loss of the alkynyl functionality under photocatalytic conditions was identified as an important deactivation pathway.

Probing the role of a conserved salt bridge in the intramolecular electron transfer kinetics of human sulfite oxidase

2013 ◽  
Vol 18 (6) ◽  
pp. 645-653 ◽  
Author(s):  
Kayunta Johnson-Winters ◽  
Amanda C. Davis ◽  
Anna R. Arnold ◽  
Robert E. Berry ◽  
Gordon Tollin ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Salt Bridge ◽  
Sulfite Oxidase ◽  
Intramolecular Electron Transfer ◽  
Electron Transfer Kinetics ◽  
Human Sulfite Oxidase ◽  
Kinetics Of
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