Electron paramagnetic resonance study of hydrogen and fluorine atom addition to SO<sub>2</sub>
作者:C. A. McDowell、F. G. Herring、J. C. Tait
DOI:10.1063/1.431803
日期:1975.10.15
The electron paramagnetic resonance spectrum of the species formed in the near uv photolysis of mixtures of argon or krypton containing 1% HI and SO2, 1% CF3OF and SO2, or F2SO2 has been investigated at 4.2 K. The species formed when an HI/SO2 mixture is photolyzed has been identified as the symmetric σ radical HSO2. The assignment of the principal components of the g and hyperfine tensors was aided by our observation of preferential orientation of the trapped radical. The species formed when a CF3OF/SO2 mixture is photolyzed in the far uv has been identified as the symmetric σ radical FSO2. The g and A tensors have been determined from an exact solution of the spin Hamiltonian assuming a noncollinear tensor axis system.