XPS Investigation of A3 Coupling Reaction in Room Temperature Ionic Liquids

Bulletin of the Korean chemical society

Ji Hye Kwon¹  So Won Youn¹  Yong-Cheol Kang¹ 

关键词: X-ray photoelectron Spectroscopy;    Ultra-high vacuum;    A3 coupling reaction;    Room temperature ionic liquid;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We herein report a new analytical application of XPS to the identification of organic molecules in room temperature ionic liquid for the first time. An organic compound, propargylamine (1), produced in 1-butyl-3- methylimidazolium hexafluorophosphate ([bmim][PF6]), which is one of the room temperature ionic liquids (RTILs), via A3 coupling reaction, is characterized by means of x-ray photoelectron spectroscopy (XPS) rather than using conventional organic compound analysis techniques. There are four non-equivalent carbons in RTILs and 1 each. The ratios of normalized integrated areas of the deconvoluted binding energy of core electron of carbon (C1s) peaks are well matched to the number of carbons in those compounds. The binding energies of C1s of the featured carbons in 1, C4 (sp carbons in acetylene group) and C5 (sp2 carbons in benzene ring), are assigned 286.2 and 285.4 eV, respectively. These results will be able to provide an important tool and a new strategy for the analysis of organic molecules

【 授权许可】

Unknown