Real time experimental techniques for radical decompositions

2 Real time experimental techniques for radical decompositions 

The data for the neopentyl radical showed that the rate coefficient is close to the high pressure limit under the experimental conditions employed, allowing an accurate extrapolation to be made. Analysis gives  

This expression is central to the analysis of the isomerization of the neopen-tylperoxy radical discussed in Section 2.7. 

The ethyl radical decomposition is, effectively, at the low pressure limit under the PIMS conditions and the rate data were used, in conjunction with a master equation analysis, to obtain energy transfer parameters. This analysis is discussed further in Section 2.4.3. 

In the laser flash photolysis/PIMS technique the radicals are generated uniformly along the entire length of the heated flowtube in two ways, either by the direct photolysis of a suitable precursor 

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