PNacPNacE: (E = Ga, In, Tl) – monomeric group 13 metal(<scp>i</scp>) heterocycles stabilized by a sterically demanding bis(iminophosphoranyl)methanide

Abstract

, were not successful and no aluminium(i) congener could be prepared so far. DFT studies on LE:, E = Al-Tl, were carried out and support the formulation as an anionic, N,N'-chelating methanide ligand coordinating to group 13 metal(i) cations. The HOMOs of the molecules for E = Al-In show a dominant contribution from a metal-based lone pair that is high in s-character.