TY - JOUR
T1 - Novel cyclic sulfonium-based ionic liquids
T2 - Synthesis, characterization, and physicochemical properties
AU - Zhang, Qinghua
AU - Liu, Shimin
AU - Li, Zuopeng
AU - Li, Jian
AU - Chen, Zhengjian
AU - Wang, Ruifeng
AU - Lu, Liujin
AU - Deng, Youquan
PY - 2009/1/5
Y1 - 2009/1/5
N2 - A new series of ionic liquids composed of three cyclic sulfonium cations and four anions has been synthesized and characterized. Their physicochemical properties, including their spectroscopic characteristics, ion cluster behavior, surface properties, phase transitions, thermal stability, density, viscosity, refractive index, tribological properties, ion conductivity, and electrochemical window have been comprehensively studied. Eight of these salts are liquids at room temperature, at which some salts based on [NO3]- and [NTf2]- ions exhibit organic plastic crystal behaviors, and all the saccharin-based salts display relatively high refractive indices (1.442-1.594). In addition, some ionic liquids with the [NTf2] - ion exhibit peculiar spectroscopic characteristics in FTIR and UV/Vis regions, whilst those salts based on the [DCA]- ion show lower viscosities (34.2-62.6 mPa s at 20°C) and much higher conductivities (7.6-17.6 mS cm-1 at 20°C) than most traditional 1,3-dialkylimidazolium salts.
AB - A new series of ionic liquids composed of three cyclic sulfonium cations and four anions has been synthesized and characterized. Their physicochemical properties, including their spectroscopic characteristics, ion cluster behavior, surface properties, phase transitions, thermal stability, density, viscosity, refractive index, tribological properties, ion conductivity, and electrochemical window have been comprehensively studied. Eight of these salts are liquids at room temperature, at which some salts based on [NO3]- and [NTf2]- ions exhibit organic plastic crystal behaviors, and all the saccharin-based salts display relatively high refractive indices (1.442-1.594). In addition, some ionic liquids with the [NTf2] - ion exhibit peculiar spectroscopic characteristics in FTIR and UV/Vis regions, whilst those salts based on the [DCA]- ion show lower viscosities (34.2-62.6 mPa s at 20°C) and much higher conductivities (7.6-17.6 mS cm-1 at 20°C) than most traditional 1,3-dialkylimidazolium salts.
KW - Electrochemistry
KW - Ionic liquids
KW - Performance
KW - Physicochemical properties
KW - Sulfonium ions
UR - https://www.scopus.com/pages/publications/58449125158
U2 - 10.1002/chem.200800610
DO - 10.1002/chem.200800610
M3 - 文章
C2 - 19040247
AN - SCOPUS:58449125158
SN - 0947-6539
VL - 15
SP - 765
EP - 778
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 3
ER -