Exposure of dilute solutions of dimethylsulfide, methanethiol, tetrahydrothiophene, terbutyl and diterbutyl‐sulfides, dimethyl‐disulfide, and diterbutyldisulfide, in freon at 77 K to 60Co γ rays gave the corresponding cations. From the reported ESR spectra, g tensors were obtained. It was found that both sulfide and disulfide cations exhibit the same g tensor: (gmax=2.034±0.002, gint=2.017±0.001, gmin=2.001±0.005). From this result it has been shown that the disulfide cation is planar. This finding was supported by fully optimized geometry ab initio calculations.
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1985
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