Synthesis and structural characterization of the first completely alkyl-substituted Ga–Sb Lewis acid–base adducts

Abstract

The simple Lewis acid–base adducts (n-Bu)₃Ga(SbR₃) (R = Et 1, n-Pr 2, i-Pr 3, t-Bu 4) and (t-Bu)₃Ga(SbR₃) (R = Et 5, n-Pr 6, i-Pr 7, t-Bu 8) were prepared by combination of n-Bu₃Ga or t-Bu₃Ga, respectively, with the corresponding trialkylstibanes in a 1∶1 molar ratio. 1–8 were fully characterized by multinuclear NMR (¹H and ¹³C) and mass spectroscopy. In addition, the solid state structures of 5 and 7 were determined by single crystal X-ray diffraction studies.