Deterministic identifiability of two-state excited-state models with transients: Recovery of deactivation rate constants

1999 ◽  
Vol 110 (3) ◽  
pp. 1623-1627 ◽  
Author(s):  
Andrzej Molski ◽  
Noël Boens
Keyword(s):  
Excited State ◽  
Rate Constants ◽  
Deactivation Rate ◽  
State Models

INTERSYSTEM CROSSING OF THE ELECTRONICALLY EXCITED DIDEUTEROETHYLENE MOLECULES FORMED IN BENZENE PHOTOSENSITIZATION

1966 ◽  
Vol 44 (18) ◽  
pp. 2173-2180 ◽  
Author(s):  
Terumi Terao ◽  
Shun-Ichi Hirokami ◽  
Shin Sato ◽  
R. J. Cvetanović
Keyword(s):  
Excited State ◽  
Experimental Evidence ◽  
Rate Constants ◽  
Intersystem Crossing ◽  
Molecular Decomposition ◽  
Electronically Excited

Experimental evidence is presented for a rapidly occurring intersystem crossing of the electronically excited dideuteroethylene molecules initially formed in the benzene-photosensitized reaction at 2 537 Å and 25 °C to another excited state which is responsible for the internal H-atom scrambling. The mechanism is entirely analogous to that previously postulated for the photoexcited states sensitized by Hg(3P1) atoms but the rate constants for intersystem crossing and molecular decomposition are drastically decreased as a result of the smaller amount of energy available for the excitation.

Substituent effects on homolytic versus heterolytic photocleavage of (1-naphthylmethyl)trimethylammonium chlorides

1987 ◽  
Vol 65 (7) ◽  
pp. 1599-1607 ◽  
Author(s):  
B. Foster ◽  
B. Gaillard ◽  
N. Mathur ◽  
A. L. Pincock ◽  
J. A. Pincock ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Hydrogen Atom ◽  
Charge Distribution ◽  
Rate Constants ◽  
Bond Cleavage ◽  
Substituent Effects ◽  
Hydrogen Atom Transfer ◽  
Singlet Excited State ◽  
State Rate

Singlet excited state rate constants have been measured for both the heterolytic and homolytic photocleavage of 3- and 4-methoxy and 3- and 4-cyano (1-naphthylmethyl)trimethylammonium chlorides, 6–10. The results are interpreted in terms of the meta effect or changes in charge distribution upon excitation and the competition between bond cleavage, electron transfer, and hydrogen atom transfer in the contact pairs resulting from the two types of cleavage.

Competition between electron transfer, trapping, and recombination in CdS nanorod–hydrogenase complexes

2015 ◽  
Vol 17 (8) ◽  
pp. 5538-5542 ◽  
Author(s):  
James K. Utterback ◽  
Molly B. Wilker ◽  
Katherine A. Brown ◽  
Paul W. King ◽  
Joel D. Eaves ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Kinetic Modeling ◽  
Rate Constants ◽  
Transient Absorption ◽  
Relaxation Processes ◽  
Absorption Measurements

Kinetic modeling of transient absorption measurements provides rate constants for the excited state relaxation processes relevant for photochemical H2 generation.

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