An Apparatus for Obtaining Accurate Transient Absorption Spectra on the Picosecond Time Scale

1979 ◽  
pp. 227-235
Author(s):  
R. BRUCE WEISMAN ◽  
BENJAMIN I. GREENE
Keyword(s):  
Absorption Spectra ◽  
Time Scale ◽  
Transient Absorption ◽  
Transient Absorption Spectra ◽  
Picosecond Time Scale

scholarly journals Time-dependent Picosecond Transient Absorption Spectra of 9-Acetylanthracene, Benzophenone and Acridine in Solution

1984 ◽  
Vol 4 (1-6) ◽  
pp. 287-295 ◽  
Author(s):  
Kumao Hamanoue ◽  
Kazuo Nakajima ◽  
Toshiharu Hidaka ◽  
Toshihiro Nakayama ◽  
Hiroshi Teranishi
Keyword(s):  
Absorption Spectra ◽  
Time Scale ◽  
Room Temperature ◽  
Transient Absorption ◽  
Time Dependent ◽  
Spectral Change ◽  
Transient Absorption Spectra ◽  
Picosecond Time Scale ◽  
Spectral Shapes

The transient absorption spectra of the title compounds in solutions at room temperature have been measured on the picosecond time scale. For 9-acetylanthracene and acridine there were measurable changes of the spectral shapes in the first picosecond region, while no spectral change was observed for benzophenone.

scholarly journals A convenient nanosecond laser photolysis system for the measurements of transient absorption spectra on a microsecond time scale.

1987 ◽  
Vol 36 (2) ◽  
pp. 126-134 ◽  
Author(s):  
Toshihiro NAKAYAMA ◽  
Tetsuji YAMAGUCHI ◽  
Kumao HAMANOUE ◽  
Hiroshi TERANISHI ◽  
Toshihiko NAGAMURA ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Time Scale ◽  
Transient Absorption ◽  
Laser Photolysis ◽  
Nanosecond Laser ◽  
Transient Absorption Spectra ◽  
Nanosecond Laser Photolysis

Kinetic-Model-Free Analysis of Transient Absorption Spectra Enabled by 2D Correlation Analysis

2021 ◽  
pp. 4148-4153
Author(s):  
Julian Hniopek ◽  
Carolin Müller ◽  
Thomas Bocklitz ◽  
Michael Schmitt ◽  
Benjamin Dietzek ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Correlation Analysis ◽  
Absorption Spectra ◽  
Transient Absorption ◽  
Transient Absorption Spectra ◽  
Model Free ◽  
2D Correlation Analysis

Graphical analysis of transient absorption spectra using the phasor approach

2015 ◽  
Vol 32 (8) ◽  
pp. 1693
Author(s):  
Hong Liu ◽  
Yulei Bai ◽  
Yun Zhang ◽  
Shuangli Ye ◽  
Weichao Xu ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Transient Absorption ◽  
Graphical Analysis ◽  
Transient Absorption Spectra

Electron attachment in irradiated solutions

1964 ◽  
Vol 277 (1371) ◽  
pp. 549-561 ◽  
Keyword(s):  
Absorption Spectra ◽  
Transient Absorption ◽  
Electron Attachment ◽  
Alkaline Solutions ◽  
Neutral Solution ◽  
Anaerobic Conditions ◽  
Ketyl Radical ◽  
Neutral Radical ◽  
Transient Absorption Spectra ◽  
Flash Spectroscopy

Transient absorption spectra have been obtained by pulsed radiolysis and flash spectroscopy of neutral and alkaline solutions of benzophenone under anaerobic conditions. These spectra demonstrate the formation of the ketyl radical ion (C 6 H 5 ) 2 Ċ—O - as a primary product resulting from electron attachment to benzophenone. In neutral solution, the rapid neutralization of the ketyl ion produces the neutral radical (C 6 H 5 ) 2 Ċ—OH, and this is shown by a change in the optical absorption spectrum. Neither of the absorption spectra due to these species is observed in acid solutions. These observations show that in neutral and alkaline solution, the hydrated electron reacts directly with the solute, whereas in acid solution it is converted to the hydrogen atom before reacting with the solute.

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