From mixed group 13 cations [M(AlCp*)₃]⁺ (M = Ga/In/Tl) to an Al₄ ⁺ cluster.

ABSTRACT: AlCp*-complexes with transition metals have shown to be highly reactive and enable C-H or Si-H bond activation. Yet, complexes of AlCp* with low-valent main-group metals are scarce. Here, we report the syntheses of [M(AlCp*)₃][Al(OR^F)₄] (R^F = C(CF₃)₃) with M = Ga, In, Tl, which include the first covalent Al-In and Al-Tl bonds. For M = Ga, AlCp*-coordination induced the formation of the dication [Ga₂(AlCp*)₆]²⁺ in the solid state, which exhibits a solvent and temperature dependent monomer-dimer equilibrium in solution. By contrast, the In and Tl complexes are monomeric and prone to reduction to the metal by the electron-rich AlCp*-moieties. The QTAIM analysis suggests that the metal centres ar

SUBMITTER: Dabringhaus P 

PROVIDER: S-EPMC9600313 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature