1-Alkyl-3-methyl-1,2,3-triazolium [NTf₂] ionic liquids: synthesis and properties

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• 作者：Zachary K. Reeder ; Abigail M. Adler ; Kevin M. Miller ; ^{kmiller38@murraystate.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Ionic liquid ; 1 ; 2 ; 3-Triazolium ; Walden plot ; Thermal stability
• 刊名：Tetrahedron Letters
• 出版年：2016
• 出版时间：13 January 2016
• 年：2016
• 卷：57
• 期：2
• 页码：206-209
• 全文大小：576 K

文摘

A series of 1-alkyl-3-methyl-1,2,3-triazolium bis(trifluoromethylsulfonyl)imide [NTf₂] ionic liquids were prepared synthetically using azide–alkyne ‘click’ cyclization chemistry and their physicochemical and thermal properties were determined. Increasing the alkyl chain length resulted in increased viscosities and higher thermal transitions (T_g or T_m) with depressed molar conductivities. Walden plot analysis indicated that the ionicity of 1-butyl-3-methyl-1,2,3-triazolium [NTf₂] was comparable to the analogous imidazolium system and higher than the 1,2,4-triazolium equivalent.