Gallium-Nitrogen Compounds Prepared by Dihydronaphthalene Structures of PhMe2CCH2GaNH(t-Bu)2 and (H4C6)Me2CCH2GaNH (t-Bu)2Ga(CH2CMe2Ph)2

摘要

The dihydronaphthalene elimination reaction between Na2C10H8(GaR2Cl) 2 (R = CH2CMe3, CH2CMe2Ph) and t-BuNH2 provided a room temperature route to R2GaNH(t-Bu)2. However, when Ga(CH2CMe2Ph)3 and t-BuNH2 were reacted at 140 - 150C, C6H5CMe3 was eliminated and the product was (H4C6)Me2CCH2GaNH(t-Bu) 2Ga(CH2CMe2Ph)2, a gallium(III) amide with one GaC4 metallocyclic ring, rather than (PhMe2CCH2)2GaNH(t- Bu)2. X-ray structural studies confirmed the identity of this novel compound as well as that of the typical dimer. When the reaction temperature was increased to 210 - 230C, the product was (H4C6)Me2CCH2GaNH(t-Bu) 2GaCH2CMe2(C6H4), a species with two GaC4 metallocyclic rings.