By David H. Volman, George S. Hammond, Douglas C. Neckers
A part of a continuous sequence which explores the frontiers of photochemical study, this quantity comprises reviews by means of specialists within the box who seriously learn latest information.
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Additional resources for Advances in Photochemistry, Volume 18
Even though fluctuations in the speed of the moving mirror do occur in the course of a scan of data collection, no uncertainties in the temporal resolution of the experiments are introduced because the zero crossings, laser pulse, and data acquisition are all tightly coupled in time. Operation of the instrument in this configuration has the drawback that only one temporal data point is taken per excitation event (only one interferogram and hence chemiluminescence spectrum is obtained per scan of the instrument).
In this laboratory, free-radical reagents are formed by IRMPD of a suitable precursor molecule, and subsequently react with an atomic reagent in a discharge flow system . This method overcomes many of the problems encountered when the polatomic free radical of interest is formed in a preceding abstraction reaction of the atomic reagent with a larger precursor molecule, as the prereaction itself in many cases generates infrared chemiluminescence from the same emitting species as the product of the atomradical reaction of interest, and can complicate the product population analysis.
B)Emission produced following IRMPD of the precursor, in this case at l o p delay at a pressure of 40mTorr using the SS method [lOS]. Emission from HF (u’ = 1-5) is observed, and in both sets of measurements (with lower SNR than shown in the figure), data were taken at a combination of pressure of precursor and delay times such that rotational, as well as vibrational, relaxation was negligible. Figure 13a reproduced with permission from Ref. 47. with the distributions showing evidence of interactions taking place as the products separate.
Advances in Photochemistry, Volume 18 by David H. Volman, George S. Hammond, Douglas C. Neckers