@article{scholars9545,
           title = {Synthesis, thermophysical properties, Hammett acidity and COSMO-RS study of camphorsulfonate-based Br{\~A}{\P}nsted acidic ionic liquids},
             doi = {10.1016/j.molliq.2018.09.024},
          volume = {271},
            note = {cited By 9},
           pages = {621--630},
       publisher = {Elsevier B.V.},
         journal = {Journal of Molecular Liquids},
            year = {2018},
        abstract = {In this work the synthesis of five new Br{\~A}{\P}nsted acidic ionic liquids (BAILs) bearing same anion (camphorsulfonate) but different cations; 3-(3-sulfopropyl)-imidazolium, 1-methyl-3-(3-sulfopropyl)-imidazolium, 1-methyl-3-(4-sulfobutyl)-imidazolium, 1-ethyl-3-(3-sulfopropyl)-imidazolium, 1-butyl-3-(3-sulfopropyl)-imidazolium) were synthesized and characterized. The characterization of BAILs was carried out using NMR, FTIR and elemental analysis (CHNS). The thermophysical properties of these ILs such as density, refractive index, viscosity and thermal stability were analyzed in wide temperature window. Furthermore, the effect of alkyl chain length of cations on thermophysical properties was well studied. The experimental values of density were further used to calculate other significant properties such as molar volume, standard molar entropy, lattice energy and thermal expansion coefficients. The Br{\~A}{\P}nsted acidities of investigated ILs were determined using Hammett method. Furthermore, COSMO-RS study was performed to determine {\^I}?-surface, and {\^I}?-profile of the studied ILs. {\^A}{\copyright} 2018},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053181217&doi=10.1016\%2fj.molliq.2018.09.024&partnerID=40&md5=fa4f352e8575bec7ccc5aaef233de50a},
        keywords = {Acidity; Positive ions; Refractive index; Thermal expansion; Thermodynamic properties, Acidic ionic liquids; Camphorsulfonate; COSMO-RS; Hammett acidities; Imidazolium, Ionic liquids},
          author = {Sardar, S. and Wilfred, C. D. and Mumtaz, A. and Rashid, Z. and Leveque, J.-M.},
            issn = {01677322}
}