Synthesis and computational aspects of Al(ii)–Al(ii) and Ga(ii)–Ga(ii) dihalides based on an amidinate scaffold

Abstract

Amidinate compounds with stabilized aluminium(II) and gallium(II) elements of composition L₂M₂X₂ (3 and 4) have been prepared from their LMX₂ (1 and 2) precursor, where M = Al (1 and 4) and Ga (2 and 3); L = PhC(NⁱPr₂C₆H₃)₂ (1 and 4) and PhC(N^tBu)₂ (2 and 3); and X is I (1 and 4) and Cl (2 and 3) and insights into their bonding are gained. The M–M bond lengths are reported along with the single-crystal X-ray structures of 1–4.