Reference of 2213-63-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a Article£¬once mentioned of 2213-63-0
Observation of the set of the rhree sublevel phosphorescence spectra. III. External heavy atom effect on the phosphorescence spectra of quinoxaline and 2,3-dichloroquinoxaline
The sublevel phosphorescence spectra of quinoxaline and 2,3-dichloroquinoxaline are obtained in a light atom host such as naphthalene-d8 and 1,2,4,5,-tetramethylbenzene and in a heavy atom host such as 1,2,4,5,-tetrabromobenzene.Only the radiative decays, but not the nonradiative decays, are susceptibile to external heavy atom effect.For the phosphorescence from the in-plane sublevels significant heavy atom effect is observed for the 0-0 and some vibronic bands involving nontotally symmetric vibrations.For the phosphorescence from the out-of-plane sublevel, external heavy atom effect exists but the enhancement is very slight.These features are interpreted satisfactorily in the framework of a theory.The external heavy atom effect observed in 1,4-dibromobenzene differs sonsiderably, and the origin of the discrepancy is discussed.
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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1605 | ChemSpider