Abstract

The 1:1 molecular adducts of trimethylgallium with methanol, methanethiol and hydrogen sulfide were isolated and characterized for the first time using the matrix isolation technique with FT-IR detection. Spectral analysis showed these adducts to be less strongly bound than the complexes of (CH 3) 3Ga with the group VI dimethyl compounds (e.g. (CH 3) 2O). Evidence was obtained for loss of the C 3 symmetry axis in the complex, as well as for a distortion from planarity of the GaC 3 skeleton. Spectral shifts upon complex formation for these complexes, and those studied previously, correlate well with the proton affinity of the base subunit in the complex.

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