Accessing Low‐Valent Inorganic Cations by Using an Extremely Bulky N‐Heterocyclic Carbene. Issue 47 (27th July 2017)

• Record Type: Journal Article
• Authors: Roy, Matthew M. D.; Lummis, Paul A.; Ferguson, Michael J.; McDonald, Robert; Rivard, Eric
• Is Part Of: Chemistry. Volume 23:Issue 47(2017)
• Page Start: 11249
• Page End: 11252
• Publication Date: 2017-07-27
• Subjects: cations -- germanium -- ligand design -- main group chemistry -- thallium; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201703215
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: The extremely bulky N‐heterocyclic carbene (NHC), ITr (ITr=[(HCNCPh3 )2 C:]) featuring sterically shielding umbrella‐shaped trityl (CPh3 ) substituents was prepared. This NHC features the highest percent buried volume (% V bur ) to date, and was used to form a thermally stable quasi one‐coordinate thallium(I) cation [ITr‐Tl] + . This Tl I adduct and the corresponding lithium complex [ITr⋅ Li(OEt2 )] + are versatile "all‐in‐one" transmetalation/ligation reagents for preparing low‐coordinate inorganic species inaccessible by pre‐existing routes. Abstract : Size matters : A new N‐heterocyclic carbene possessing a high degree of steric bulk was synthesized and used as an "all‐in‐one" transmetalation/ligation precursor to low‐valent inorganic cations.