The new gallium(III) cyclopentadienyl derivatives Ga(C5H4Me)3 and Ga(C5H4SiMe3)3 have
been synthesized by metathetical reactions. Subsequent stoichiometric ligand redistribution
reactions with GaR3 (R = Me, Et) were used to prepare R2Ga(C5H4Me) as pure single compounds. However, when the syntheses of RGa(C5H4Me)2 (R = Me, Et) and Me
n
Ga(C5H4SiMe3)3
-
n
(n =1, 2) by analogous stoichiometric ligand redistribution reactions were investigated,
mixtures of compounds were the isolated products. The heteroleptic organogallium compound
Me2Ga(C5H4Me) has also been prepared in high yields by using metathetical reactions
between Me2GaCl and Li(C5H4Me) in pentane and between Cl2Ga(C5H4Me), formed in-situ
from Ga(C5H4Me)3 and GaCl3 in diethyl ether, and LiMe. All pure compounds have been
characterized by their physical properties, elemental analyses, NMR spectra, and cryoscopic
molecular weight studies.
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