A Bronsted Acidic Gallium Hydride: Facile Interconversion of NNNN-Macrocycle Supported [Ga^I ]⁺ and [Ga^III H]².

ABSTRACT: Protonolysis of [Cp*M] (M=Ga, In, Tl) with [(Me₄ TACD)H][BAr₄ ^Me ] (Me₄ TACD=N,N',N'',N'''-tetramethyl-1,4,7,10-tetraazacyclododecane; [BAr₄ ^Me ]^- =[B{C₆ H₃ -3,5-(CH₃ )₂ }₄ ]^- ) provided monovalent salts [(Me₄ TACD)M][BAr₄ ^Me ], whereas [Cp*Al]₄ yielded trivalent [(Me₄ TACD)AlH][BAr₄ ^Me ]₂ . Protonation of [(Me₄ TACD)Ga][BAr₄ ^Me ] with [Et₃ NH][BAr₄ ^Me ] gave an unusually acidic (pK_a (CH₃ CN)=24.5) gallium(III) hydride dication [(Me₄ TACD)GaH][BAr₄ ^M

SUBMITTER: Morris LJ 

PROVIDER: S-EPMC9304309 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature