Resonance Raman Study of Short-Time Photodissociation Dynamics of the Charge-Transfer Band Absorption of Nitrobenzene in Cyclohexane Solution

2005 ◽  
Vol 109 (13) ◽  
pp. 3086-3093 ◽  
Author(s):  
Xin-Ming Zhu ◽  
Shu-Qiang Zhang ◽  
Xuming Zheng ◽  
David Lee Phillips
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Band ◽  
Resonance Raman ◽  
Band Absorption ◽  
Raman Study ◽  
Short Time

scholarly journals Short-Time Photodissociation Dynamics of 1-Chloro-2-Iodoethane From Resonance Raman Spectroscopy

1999 ◽  
Vol 19 (1-4) ◽  
pp. 71-74 ◽  
Author(s):  
Xuming Zheng ◽  
David Lee Phillips
Keyword(s):  
Raman Spectroscopy ◽  
Absorption Spectrum ◽  
Raman Spectra ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Time Dependent ◽  
Internal Excitation ◽  
Band Absorption ◽  
Resonance Raman Spectra ◽  
Short Time

We have obtained A-band absorption resonance Raman spectra of 1-chloro-2- iodoethane in cyclohexane solution. We have done preliminary time-dependent wavepacket calculations to simulate the resonance Raman intensities and absorption spectrum in order to learn more about the short-time photodissociation dynamics. We compare our preliminary results for 1-chloro-2-iodoethane with previous resonance Raman results for iodoethane and find that there appears to be more motion along non- C—I stretch modes for 1-chloro-2-iodoethane than for iodoethane. This is consistent with results of TOF photofragment spectroscopy experiments which indicate much more internal excitation of the photoproducts from 1-chloro-2-iodoethane photodissociation than the photoproducts from iodoethane photodissociation.

FT-Raman Study on Charge-Transfer Polyiodide Complexes and Comparison with Resonance Raman Results

1994 ◽  
Vol 48 (10) ◽  
pp. 1236-1241 ◽  
Author(s):  
Paola Deplano ◽  
Francesco A. Devillanova ◽  
John R. Ferraro ◽  
Maria Laura Mercuri ◽  
Vito Lippolis ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Resonance Raman ◽  
Structural Data ◽  
Close Correlation ◽  
Interatomic Distances ◽  
X Ray ◽  
Raman Study ◽  
The Fourier Transform ◽  
Fourier Transform Raman ◽  
Ft Raman

In resonance Raman (RR) spectroscopy, the laser excitation sources have often been found to be destructive towards polyiodides if compared with the milder conditions under which the Fourier transform Raman (FT-R) technique operates. In fact, our FT-R spectra of some model polyiodides—[(CH3)4N]I5 (I5− bent), [(C2H5)4N]I7, and [(CH3)4N]I9—are significantly different from the literature RR data, give evidence of decomposition of the samples in RR, and are in agreement, respectively, with the I− · 2I2, I3− · 2I2 and (I− · 2I2) · 2I2 descriptions. In addition to the above-cited cases, the FT-R spectra of (Mn(modtc)3]Is (modtc = morpholine carbodithioato) and (moH]I5 (moH = morpholinium) are reported. The crystal structures indicate that in these two compounds the I5 anions can be properly described as I− · 2I2 and I3− · I2, respectively, and FT-R spectra agree well with this formulation. Moreover, the first FT-R spectrum of an I164– anion in [mo2ttl]2I16, ([mo2ttl]2+ = 3,5-di( N-morpholinio)-1,2,4-trithiolane), whose X-ray structure shows a sequence of two I3− … I2 … I− ·I2 (I82–) interacting anions, is reported. A close correlation of the FT-Raman peaks with the molecular species, identified by the interatomic distances, is also observed in this case. Thus, a combination of X-ray structural data and FT-R data can provide a reasonable interpretation of the nature of the acceptor iodine moiety in charge-transfer polyiodide complexes.

A resonance Raman study on the nature of charge-transfer interactions in butyryl CoA dehydrogenase

FEBS Letters ◽  
1982 ◽  
Vol 138 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Gary Williamson ◽  
Paul C. Engel ◽  
Yasuzo Nishina ◽  
Kiyoshi Shiga
Keyword(s):  
Charge Transfer ◽  
Resonance Raman ◽  
Raman Study

Resonance Raman Study of Flavoenzyme-Inhibitor Charge-Transfer Interactions: Old Yellow Enzyme-Phenol Complexes

1980 ◽  
Vol 87 (3) ◽  
pp. 831-839 ◽  
Author(s):  
Yasuzo NISHINA ◽  
Teizo KITAGAWA ◽  
Kiyoshi SHIGA ◽  
Hiroshi WATARI ◽  
Toshio YAMANO
Keyword(s):  
Charge Transfer ◽  
Resonance Raman ◽  
Old Yellow Enzyme ◽  
Raman Study
Sign in / Sign up

Export Citation Format

Share Document