Abstract
The smallest folding angle yet to be found of a four membered gallium-heteroatom ring system with butterfly geometry is in the title compound [ iPr 2GaP( iPr 2)] 2 (II). The synthesis of this compound and of its arsenide homologue (III) via the reaction of iPr 3Ga with the H-acidic compounds iPr 2EH (E P, As) is reported. Both compounds react below the decomposition temperature of 400°C, splitting off propene and propane, respectively. They may be suitable organometallic precursors for III/V-layer compounds. On the other hand, the reaction of iPr 3Ga with tBu 2AsH leads only to the formation of the corresponding Lewis acid-base adduct iPr 3Ga·.As(H) tBu 2 (IV). Spectra and some physical and chemical properties of the new compounds II–IV are reported.
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