Volume 1. D.G. Tuck, in Comprehensive Organometallic Chemistry, 1982 7.8.2 Tetra-alkyl and -aryl Complexes. Potassium or rubidium salts of the GaMe 4 − anion can be prepared by the treatment of Me 3 Ga with the metal (mole ratio 5 : 6) in THF. 166,167 The salts are isostructural with the aluminium analogues, and were shown by X-ray crystallography to …