Electronic Resource
New York, NY
:
Wiley-Blackwell
International Journal of Chemical Kinetics
9 (1977), S. 409-415
ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Nanosecond spectroscopic and kinetic studies of 4-nitronaphthylamine (4-NO2NA) in aerated and deaerated nonpolar solvents at room temperature show a transient species with absorption maxima at 470 and 665 nm. The rate constant for the decay of this species in deaerated benzene is 6.7 × 105 sec-1, while in aerated benzene solutions the species is quenched by oxygen with arate constant k = 2.0 × 109M-1·sec-1. The transient absorption at 470and 665 nm is assigned to the lowest triplet excited state of 4-NO2NA. In polar solvents, however, electronic excitation of 4-NO2NA does not lead to any detectable transient absorption between 400 and 800 nm for the temperature range of 25 to -150°C. This is attributed to lack of intersystem crossing of 4-NO2NA in polar solvents.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550090310
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