Abstract
A general method was developed for preparing specific trapped hydrocarbon radicals by simple chemical reaction. In the method, a thin discontinuous film of Na atoms is deposited onto a freshly prepared moving surface of halogenated hydrocarbon (preferably an iodide) at liquid N/sub 2/ temperatures in a rotating cryostat. The Na atoms react to form the Na halide and the hydrocarbon radical. A fresh layer of the halogenated hydrocarbon is then deposited to form a matrix with trapped radicals. A sample of the deposit is then transferred to an ESR spectrometer. A table is included which gives the results of ESR spectral and gas-liquid chromatographic analysis of 11 matrixes prepared by this method. (D.L.C.)
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