Abstract
The ground- and excited-state reactions of matrix-isolated gallium atoms with methane have been investigated by UV-visible and infrared spectroscopies. Gallium atoms were co-condensed with methane-doped argon (1:10 CH 4 /Ar) at 12 K. No evidence was found for a ground-state reaction. Gallium atom photoexcitation at 354 nm ( 2 S→ 2 P) resulted in rapid disappearance of all Ga UV absorptions, and the appearance of IR absorptions, which are attributed to methylgallium hydride
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