Ultrafast electron transfer in tetracyanoethylene-benzene charge transfer complex

• Autorzy: Jarzęba W. , Tokarczyk B. , Murata S. , Tachiya M.
• Języki publikacji: EN

Abstrakty

EN

Ultrafast pump-probe transient absorption spectroscopy has been applied to study return electron transfer in the tetracyanoethylene- benzene electron donor-acceptor complex in several polar and non-polar solvents. Ultrafast excitation of the charge transfer band of the complex yields an excited Franck-Condon state, which relaxes to form a contact ion pair. The decay time of the ion pair is, in most cases, longer than the solvation time and is observed on a time scale from 2 picoseconds to 1 ns, depending on the solvent. Using the empirical solvent polarity scale ^vG153 and a conventional non-adiabatic theory of electron transfer, absolute rate constants for the non-radiative return electron transfer can be predicted in different solvents.

Słowa kluczowe

EN

ultrafast electron transfer; tetracyanoethylene; charge transfer

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 1999
• Tom: Vol. 47, No. 4
• Strony: 347--360
• Opis fizyczny: Bibliogr. 54 poz.

Twórcy

autor

Jarzęba W.

autor

Tokarczyk B.

autor

Murata S.

autor

Tachiya M.

• Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland (Wydział Chemii, Uniwersytet Jagielloński)