title: Is Amine a Stronger Base in Ionic Liquid Than in Common Molecular Solvent? An Accurate Basicity Scale of Amines.
abstract: The equilibrium basicities of 21 frequently used amines in two room-temperature ionic liquids (RTILs) were measured precisely. The standard deviation was much superior to that sparsely reported elsewhere. The data comparisons revealed that amines are stronger bases in ionic ligquids than in DMSO and water but weaker base than in acetonitrile (AN). Interestingly, regression analyses demonstrate that the basicity scales obtained in two RTILs correlate well with that in AN but not with those in water and DMSO.
authors.affiliation: †Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China.
authors.forename: Chong
authors.initials: C
authors.lastname: Mao
authors.affiliation: †Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wang
authors.affiliation: †Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China.
authors.forename: Pengju
authors.initials: P
authors.lastname: Ji
authors.affiliation: †Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China.|‡State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China.
authors.forename: Jin-Pei
authors.initials: JP
authors.lastname: Cheng