Femtosecond Spectroscopy of Heterogeneous Electron Transfer:  Extraction of Excited-State Population Dynamics from Pump−Probe Signals

2003 ◽  
Vol 107 (2) ◽  
pp. 607-611 ◽  
Author(s):  
S. Ramakrishna ◽  
F. Willig ◽  
V. May ◽  
A. Knorr
Keyword(s):  
Electron Transfer ◽  
Population Dynamics ◽  
Excited State ◽  
Femtosecond Spectroscopy ◽  
Pump Probe ◽  
State Population ◽  
Heterogeneous Electron Transfer ◽  
Excited State Population

Measurement of the chirp-dependent fluorescence response: a window to excited-state population dynamics

1999 ◽  
Author(s):  
G. J. Brakenhoff ◽  
Arjan H. Buist ◽  
Michiel Mueller ◽  
Jeffrey A. Squier ◽  
Chris J. Bardeen ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Excited State ◽  
Fluorescence Response ◽  
State Population ◽  
Excited State Population

Excited-state population distributions of alkaline-earth metal in a hollow cathode lamp

2018 ◽  
Vol 16 (3) ◽  
pp. 033001
Author(s):  
Pengyuan Chang Pengyuan Chang ◽  
Bo Pang Bo Pang ◽  
Yisheng Wu Yisheng Wu ◽  
Jingbiao Chen Jingbiao Chen
Keyword(s):  
Excited State ◽  
Hollow Cathode ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Hollow Cathode Lamp ◽  
State Population ◽  
Population Distributions ◽  
Excited State Population

scholarly journals Halogen-Bond Assisted Photoinduced Electron Transfer

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4361
Author(s):  
Bogdan Dereka ◽  
Ina Fureraj ◽  
Arnulf Rosspeintner ◽  
Eric Vauthey
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Ground State ◽  
Halogen Bond ◽  
Quenching Rate ◽  
Excited Complex ◽  
Diffusion Controlled ◽  
Donor Acceptor ◽  
Quenching Rate Constant ◽  
Excited State Population

The formation of a halogen-bond (XB) complex in the excited state was recently reported with a quadrupolar acceptor–donor–acceptor dye in two iodine-based liquids (J. Phys. Chem. Lett. 2017, 8, 3927–3932). The ultrafast decay of this excited complex to the ground state was ascribed to an electron transfer quenching by the XB donors. We examined the mechanism of this process by investigating the quenching dynamics of the dye in the S1 state using the same two iodo-compounds diluted in inert solvents. The results were compared with those obtained with a non-halogenated electron acceptor, fumaronitrile. Whereas quenching by fumaronitrile was found to be diffusion controlled, that by the two XB compounds is slower, despite a larger driving force for electron transfer. A Smoluchowski–Collins–Kimball analysis of the excited-state population decays reveals that both the intrinsic quenching rate constant and the quenching radius are significantly smaller with the XB compounds. These results point to much stronger orientational constraint for quenching with the XB compounds, indicating that electron transfer occurs upon formation of the halogen bond.

New test of the excited state population method for measurements of nuclear temperatures

1990 ◽  
Vol 41 (5) ◽  
pp. 2406-2409 ◽  
Author(s):  
J. H. Lee ◽  
W. Benenson ◽  
C. Bloch ◽  
Y. Chen ◽  
R. J. Radtke ◽  
...  
Keyword(s):  
Excited State ◽  
State Population ◽  
Excited State Population
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