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Simple synthesis of tetra-n-butylphosphonium benzimidazolate/benzimidazole mixture as a thermally stable proton conductor
2011
Chemical Communications
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Preparation of ionic liquids and mixture with benzimidazole Aqueous solution of [P 4444 ][OH] (a donation from Hokko Chemical) and reagent grade BzIm (Tokyo Chemical Industry Co., Ltd.) were used without further purification. Equimolar amounts of [P 4444 ][OH] and BzIm were mixed slowly in methanol under an atmosphere of nitrogen and stirred on an ice bath, so as to prepare the tetra-n-butylphosphonium benzimidazolate ([P 4444 ][BzIm]) after drying (Scheme 1). A similar process was used to
doi:10.1039/c0cc03170d
pmid:21270974
fatcat:sr7v6uykw5etxb427svidwsaza