Exploiting isolobal relationships to create new ionic liquids: novel room-temperature ionic liquids based upon (N-alkylimidazole)(amine)BH2+“boronium” ions

Abstract

Readily prepared imidazole-based boronium ions form stable, hydrophobic, room-temperature ionic liquids (RTIL) with unique electronic and spectroscopic characteristics.

Structural characteristics of alkylimidazolium-based salts containing fluoroanions

“…As in the case of EMBzImTFSI, the Me 3 NBH 2 MImTFSI (Me 3 NBH 2 MIm = (N-methylimidazole) (trimethylamine)boronium) contains disordered TFSI anions in the trans-conformation and only weak intermolecular contacts in the lattice [54]. This is the first structural model of (N-alkylimidazole)(amine)boronium-based ionic liquids.…”

Preparation of ionic liquids bearing o-carborane anion via N,N′-dialkylimidazol-2-ylidene carbene

“…The ILs bearing a perfluoroalkyltrifluoroborates [8] were also reported by Tatsumi et al Watanabe et al reported lithium cation containing organoborate ILs bearing oligoethers [9]. ILs including a boronium cation were also reported by Rogers and coworkers [10].…”

Novel scorpionate-type triscarbene ligands and their silver and gold complexes

“…The bulky {[HB(MesImH) 3 ]Br 2 } (2), and tris(tert-butyl-imidazol-3-ium-1-yl)hydroborate, {[HB(t-BuImH) 3 ]Br 2 } (3), were synthesized by a similar synthetic path to that reported for the preparation of ionic liquid imidazole-based ''boronium" ions [51]. Three equivalents of 1-tert-butylimidazole or 1-mesityl-imidazole were heated in refluxing dichloromethane with (CH 3 ) 2 S:BHBr 2 (Scheme 2).…”