Synthesis, structure and reactions of an amidinate stabilised trigallane

Abstract

The neutral trigallane R(3)Ga(3)I(2) was obtained in high yields by reaction of "GaI" with the moderately sterically demanding lithium N,N'-dicyclohexylneopentylamidinate. Its chemical reactions with N-lithio-2-propanimine, sodium superhydride and elemental iodine were investigated. RI-DFT calculations have been performed to confirm the bonding situation. All compounds are characterised by crystal structure analysis and NMR-spectroscopy.