How long are GaGa double bonds and Ga–Ga single bonds in dicationic gallium dimers?
- Resource Type
- Article
- Authors
- Barthélemy, Antoine; Scherer, Harald; Weller, Hanna; Krossing, Ingo
- Source
- Chemical Communications. 2/4/2023, Vol. 59 Issue 10, p1353-1356. 4p.
- Subject
- *DOUBLE bonds
*GALLIUM
*DIMERS
*MAGNESIUM
- Language
- ISSN
- 1359-7345
Syntheses and characterization of two salts [(L)GaGa(L)][pf]2 ([pf]− = [Al(ORF)4]−; RF = C(CF3)3) are reported. They include the first dicationic digallene [(L)GaGa(L)]2+ (L = CDPPh = C(PPh3)2) and a digallane [(L)Ga–Ga(L)]2+ (L = [NacNacMes]−). The CDPPh-supported digallene dication includes a trans-bent [L–GaGa–L]2+ bond that is analogous to neutral R–GaGa–R molecules and related to Robinson's famous "Digallyne" [R–GaGa–R]2−. The dicationic digallane [(L)Ga–Ga(L)]2+ is analogous to the widely used "Jones magnesium dimer", but includes a very short GaII–GaII single bond. [ABSTRACT FROM AUTHOR]