Photoinduced electron transfer from naphthalenes to dicyanoethenes and subsequent radical ion processes studied by time resolved CIDNP

1993 ◽  
Vol 5 (2) ◽  
pp. 127-150 ◽  
Author(s):  
E. Schaffner ◽  
M. Kweton ◽  
P. Vesel ◽  
H. Fischer
2013 ◽  
Vol 9 ◽  
pp. 1448-1454
Author(s):  
Martin Goez ◽  
Martin Vogtherr

Electron transfer between the title compounds and their radical cations, which were generated by photoinduced electron transfer from the sulfides to excited 2,4,6-triphenylpyrylium cations, was investigated by time-resolved measurements of chemically induced dynamic nuclear polarization (CIDNP) in acetonitrile. The strongly negative activation entropies provide evidence for an associative–dissociative electron exchange involving dimeric radical cations. Despite this mechanistic complication, the free energies of activation were found to be well reproduced by the Marcus theory of electron transfer, with the activation barrier still dominated by solvent reorganization.


2020 ◽  
Vol 60 (1) ◽  
pp. 449-459
Author(s):  
Jennifer Zimara ◽  
Hendrik Stevens ◽  
Rainer Oswald ◽  
Serhiy Demeshko ◽  
Sebastian Dechert ◽  
...  

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