Ultraviolet absorption spectra of CdCH3, ZnCH3, and TeCH3

Ultraviolet absorption spectra were recorded for the transient radicals CdCH₃, ZnCH₃, and TeCH₃ produced in the flash photolysis of the appropriate dimethyl metals. For CdCH₃ and ZnCH₃ two systems were observed and assigned to the two transitions ${\mathrm{Ã\hspace{0.17em}}}^2{\mathrm{E\leftarrow \; x̃}}^2{A}_1$ and ${\mathrm{B̃\hspace{0.17em}}}^2{\mathrm{E\leftarrow \; x̃}}^2{A}_1$ . For the TeCH₃ radical only one system was observed which was assigned to the $\mathrm{B̃\leftarrow \; x̃}$ transition. The progressions in the spectra are assigned to the upper state carbon‐metal stretching vibration (ν′₃) and CH₃ symmetric deformation vibrations (ν′₂).