2
0
2011
liu
yan
1
journal
Original
Liu, Q.-S.[Qing-Shan]
Yang, M.[Miao]
Li, P.-P.[Pei-Pei]
Sun, S.-S.[Si-Si]
Welz-Biermann, U.[Urs]
Tan, Z.-C.[Zhi-Cheng]
Zhang, Q.-G.[Qing-Guo]
J. Chem. Eng. Data
2011
2020-09-29
Physicochemical Properties of Ionic Liquids [C3py][NTf2] and [C6py][NTf2]
Air- and water-stable hydrophobic ionic liquids N-alkylpyridinium bis(trifluoromethylsulfonyl)imide ([Cnpy][NTf2], n = 3, 6) were synthesized. The density, surface tension, dynamic viscosity, and electrical conductivity of [C6py][NTf2] were measured in the range of T = (283.15 to 338.15) K. The density, dynamic viscosity, and electrical conductivity of [C3py][NTf2] were measured in the range of T = (308.15 to 338.15) K. The melting and glass transition temperatures of the two ILs were determined according to the differential scanning calorimetry (DSC). The physicochemical properties, including molecular volume, standard molar entropy, lattice energy, parachor, molar enthalpy of vaporization, interstice volume, interstice fraction, and thermal expansion coefficient, were estimated in terms of empirical and semiempirical equations, as well as the interstice model theory on the base of the experimental values. The dynamic viscosity and electrical conductivity values were fitted by Vogel Fulcher Tammann (VFT) and Arrhenius equations for [C6py][NTf2] and the Arrhenius equation for [C3py][NTf2].
10.1021/je200534b
11
56
4094-4101
1
InChI=1S/C8H12N.C2F6NO4S2/c1-2-6-9-7-4-3-5-8-9;3-1(4,5)14(10,11)9-15(12,13)2(6,7)8/h3-5,7-8H,2,6H2,1H3;/q+1;-1
VWSBKZWRIXRCJK-UHFFFAOYSA-N
1-propylpyridinium bis((trifluoromethyl)sulfonyl)amide
1-propylpyridinium bis(trifluormethylsulfonyl)imide
C10H12F6N2O4S2
1
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
3
0.031
2
Karl Fischer titration
2
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
3
0.019
2
Karl Fischer titration
3
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
2
InChI=1S/C11H18N.C2F6NO4S2/c1-2-3-4-6-9-12-10-7-5-8-11-12;3-1(4,5)14(10,11)9-15(12,13)2(6,7)8/h5,7-8,10-11H,2-4,6,9H2,1H3;/q+1;-1
KRGMPUIAPYZEKL-UHFFFAOYSA-N
1-hexylpyridinium bis(trifluromethylsulfonyl)imide
C13H18F6N2O4S2
1
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
3
0.045
2
Karl Fischer titration
2
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
3
0.026
2
Karl Fischer titration
3
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
3
0.025
2
Karl Fischer titration
4
Synthesized by the authors
1
Dried by vacuum heating
2
98
2
NMR (proton)
1
1
1
Principal objective of the work
PAA
XXX
11/14/2011
1
Normal melting temperature, K
DTA
Crystal
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Crystal
Liquid
Air at 1 atmosphere
1
317.6
4
1
0.5
2
1
1
Principal objective of the work
PAA
XXX
11/14/2011
1
Mass density, kg/m3
Westphal balance
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
308.15
5
1
1484.5
5
1
1.8
1
313.15
5
1
1480
5
1
1.8
1
318.15
5
1
1475.7
5
1
1.8
1
323.15
5
1
1471
5
1
1.7
1
328.15
5
1
1466.7
5
1
1.7
1
333.15
5
1
1462.3
5
1
1.7
1
338.15
5
1
1457.4
5
1
1.7
3
1
2
Principal objective of the work
PAA
XXX
11/14/2011
1
Viscosity, Pa*s
Capillary tube (Ostwald; Ubbelohde) method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
308.15
5
1
0.033
3
1
0.0008
1
313.15
5
1
0.0276
3
1
0.0007
1
318.15
5
1
0.0233
3
1
0.0006
1
323.15
5
1
0.0198
3
1
0.0005
1
328.15
5
1
0.0171
3
1
0.0004
1
333.15
5
1
0.0149
3
1
0.0004
1
338.15
5
1
0.0135
3
1
0.0003
4
1
3
Principal objective of the work
PAA
XXX
11/14/2011
1
Electrical conductivity, S/m
MP522 conductivity instrument
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
313.15
5
1
0.719
3
1
0.015
1
318.15
5
1
0.83
3
1
0.017
1
323.15
5
1
0.955
3
1
0.019
1
328.15
5
1
1.083
4
1
0.022
1
333.15
5
1
1.223
4
1
0.025
1
338.15
5
1
1.365
4
1
0.027
5
2
1
Principal objective of the work
PAA
XXX
11/14/2011
1
Triple point temperature, K
DTA
Glass
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Glass
Liquid
Air at 1 atmosphere
1
196.6
4
1
0.5
6
2
1
Principal objective of the work
PAA
XXX
11/14/2011
1
Normal melting temperature, K
DTA
Crystal
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Crystal
Liquid
Air at 1 atmosphere
1
276.4
4
1
0.5
7
2
1
Principal objective of the work
PAA
XXX
11/14/2011
1
Mass density, kg/m3
Westphal balance
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
283.15
5
1
1400.8
5
1
1.6
1
288.15
5
1
1396.6
5
1
1.6
1
293.15
5
1
1392.3
5
1
1.6
1
298.15
5
1
1387.7
5
1
1.6
1
303.15
5
1
1383.1
5
1
1.5
1
308.15
5
1
1378.9
5
1
1.5
1
313.15
5
1
1374.4
5
1
1.5
1
318.15
5
1
1369.9
5
1
1.5
1
323.15
5
1
1365.5
5
1
1.5
1
328.15
5
1
1361.5
5
1
1.5
1
333.15
5
1
1356.9
5
1
1.5
1
338.15
5
1
1352.5
5
1
1.5
8
2
2
Principal objective of the work
PAA
XXX
11/14/2011
1
Surface tension liquid-gas, N/m
Maximal bubble pressure
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Air at 1 atmosphere
1
Temperature, K
Liquid
1
283.15
5
1
0.0325
3
1
0.0004
1
288.15
5
1
0.0322
3
1
0.0004
1
293.15
5
1
0.032
3
1
0.0004
1
298.15
5
1
0.0317
3
1
0.0004
1
303.15
5
1
0.0316
3
1
0.0004
1
308.15
5
1
0.0314
3
1
0.0004
1
313.15
5
1
0.0312
3
1
0.0004
1
318.15
5
1
0.031
3
1
0.0004
1
323.15
5
1
0.0308
3
1
0.0004
1
328.15
5
1
0.0306
3
1
0.0004
1
333.15
5
1
0.0303
3
1
0.0004
1
338.15
5
1
0.0301
3
1
0.0004
9
2
3
Principal objective of the work
PAA
XXX
11/14/2011
1
Viscosity, Pa*s
Capillary tube (Ostwald; Ubbelohde) method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
298.15
5
1
0.0845
3
1
0.0021
1
303.15
5
1
0.0664
3
1
0.0016
1
308.15
5
1
0.0532
3
1
0.0013
1
313.15
5
1
0.0431
3
1
0.001
1
318.15
5
1
0.0352
3
1
0.0008
1
323.15
5
1
0.0291
3
1
0.0007
1
328.15
5
1
0.0245
3
1
0.0006
1
333.15
5
1
0.0209
3
1
0.0005
1
338.15
5
1
0.0179
3
1
0.0004
10
2
4
Principal objective of the work
PAA
XXX
11/14/2011
1
Electrical conductivity, S/m
MP522 conductivity instrument
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
283.15
5
1
0.076
2
1
0.002
1
288.15
5
1
0.1
3
1
0.002
1
293.15
5
1
0.13
3
1
0.003
1
298.15
5
1
0.166
3
1
0.003
1
303.15
5
1
0.208
3
1
0.004
1
308.15
5
1
0.257
3
1
0.005
1
313.15
5
1
0.311
3
1
0.006
1
318.15
5
1
0.387
3
1
0.008
1
323.15
5
1
0.446
3
1
0.009
1
328.15
5
1
0.538
3
1
0.011
1
333.15
5
1
0.621
3
1
0.013
1
338.15
5
1
0.712
3
1
0.014