名称:
Unusual Anions [LAl(SH)(S)]- and [LAl(S)2]2- Stabilized by Weakly Coordinating Imidazolium Cations. Synthesis of LAl(SSiMe2)2O (L = HC[C(Me)N(Ar)]2, Ar = 2,6-iPr2C6H3)
摘要:
Deprotonation of an Al-SH moiety has been achieved easily by using N-heterocyclic carbene as the base. Monomeric mono- and bis-imidazolium salts [CtH+][LAI(SH)(S)](-) ([CtH+] = N,N'-bis-tert-butylimidazolium), [CmH+][LAI(SH)(S)](-), and [CmH+](2)[LAI(S)(2)](2) ([CmH+] = N,N'-bismesitylimidazolium), containing unusual anions [LAI(SH)(S)](-) and [LAI(S)(2)](2-), have been synthesized in nearly quantitative yields, Furthermore, [CmH+](2)[LAI(S)(2)](2) has been successfully used for the preparation of LAI(SSiMe2)(2)O containing the [O(Me2SiS)(2)](2-) ligand.