An exceptionally simple method of preparation of biradicals. 2. Low-temperature fluorescence spectra and ambient temperature laser-induced fluorescence spectra of 1,3-, 1,6-, 2,6-, and 2,7-naphthoquinodimethane

1991 ◽  
Vol 113 (2) ◽  
pp. 616-620 ◽  
Author(s):  
Michael C. Biewer ◽  
Curtiss R. Biehn ◽  
Matthew S. Platz ◽  
Alain Despres ◽  
Eva Migirdicyan
Keyword(s):  
Low Temperature ◽  
Ambient Temperature ◽  
Fluorescence Spectra ◽  
Laser Induced Fluorescence ◽  
Simple Method ◽  
Low Temperature Fluorescence Spectra

scholarly journals Laser-Induced-Fluorescence Spectrum of the CNN Molecule

1988 ◽  
Vol 9 (4-6) ◽  
pp. 359-368 ◽  
Author(s):  
M. C. Curtis ◽  
A. P. Levick ◽  
P. J. Sarre
Keyword(s):  
Low Temperature ◽  
Gas Phase ◽  
Fluorescence Spectra ◽  
Laser Excitation ◽  
Band System ◽  
Laser Induced Fluorescence ◽  
Rotational Spectrum ◽  
Spin Orbit ◽  
Electronic Band ◽  
Temperature Matrix

We have recorded a laser excitation spectrum of the A3Π–X3Σ− electronic band system of the CNN radical in the gas phase, at a resolution of ca. 0.8 cm−1. The rotational branch structure of the vibrational band near 419 nm has been simulated and molecular parameters are obtained. The results are compared with data from laser-induced-fluorescence spectra of CNN trapped in a low-temperature matrix. A revised value for the spin-orbit parameter in the A3Π state is obtained and comparison is made with the values for related molecules. The possible detection of CNN in astrophysical sources is considered and the general features of its rotational spectrum in the ground electronic state are described.

scholarly journals Low temperature fluorescence spectra of atropisomeric perylene dyes

1988 ◽  
Vol 44 (3) ◽  
pp. 311-312 ◽  
Author(s):  
Heinz Langhals ◽  
Jürg Fünfschilling ◽  
Dieter Glatz ◽  
Iris Zschokke-Gränacher
Keyword(s):  
Low Temperature ◽  
Fluorescence Spectra ◽  
Low Temperature Fluorescence Spectra
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