Synthesis of a Gallaarsene {HC[C(Me)N-2,6‑<i>i</i>‑Pr<sub>2</sub>‑C<sub>6</sub>H<sub>3</sub>]<sub>2</sub>}GaAsCp* Containing a GaAs Double Bond
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Cp*AsCl2 (Cp* = C5Me5) reacts with one equivalent of LGa (L = HC[C(Me)N(2,6-i-Pr2C6H3)]2) with formation of L(Cl)GaAs(Cl)Cp* 1, whereas the reaction with two equivalents of LGa yielded gallaarsene LGaAsCp* 2 containing a GaAs double bond and (η1-Ga(Cp*)L(η2-GaL)(μ-As3) 3. Compounds 2 and 3 were structurally characterized by single crystal X-ray diffraction, and the π-bonding contribution in 2 was analyzed by temperature-dependent 1H NMR spectroscopy (9.65 kcal mol–1) and by quantum mechanical computation.
创建时间：
2018-04-04
