26506 J. Phys. Chem. B, Vol. 110, No. 51, 2006
Additions and Corrections
ADDITIONS AND CORRECTIONS 2006 Volume 110B Tamar L. Greaves, Asoka Weerawardena, Celesta Fong, Irena Krodkiewska, and Calum J. Drummond*: Protic Ionic Liquids: Solvents with Tunable Phase Behavior and Physicochemical Properties Page 22479-22487. After publication as an ASAP article, we discovered that some incorrect values were contained in Table 5 and Figure 8. The corrected table and figure are provided below. The associated text modifications are also provided. Page 22485 (section Refractive Index and Molar Refractivity, third paragraph; changes in italic): Consistent with other organic molecules, there is a strong linear relationship between the molar refractivity and the number of methylene groups (graph in Supporting Information), with the average contribution from each methylene group 6.1 ( 0.3 cm3/mol for the cations (based on three data pairs) and 6.9 cm3/ mol for the anions (based on one data pair). The cation data compare well with the literature values for the contribution to MR of amines, carboxylic acids, alcohols, and alkanes, which have values of 6.20, 6.13, 6.20, and 6.09 cm3/mol, respectively.46 Page 22486 (last paragraph of section Liquid-Air Surface Tension; changes in italic): The Parachor values for this series of PILs are listed in Table 5, and range from 180 to 340. The value obtained for the Parachor of EAN was 233, which was slightly lower than the value previously reported by Sugden et al. of 239.2.47 There is a linear relationship between the Parachor value and the total number of methylene groups for the alkylammonium carboxylates (graph in Supporting Information), which is consistent with what has previously been seen for organic molecules, which corresponds to a contribution to the Parachor value for each methylene group of 38 ( 1 for cations (based on three data pairs) and 40 for anions (based on one data pair). The cation and anion data compare well with the literature values for the contribution to the Parachor value of amines, carboxylic acids, alcohols, and alkanes, which have values of 40.1, 39.3, 39.2, and 40.2, respectively.46 Supporting Information. Two figures in the Supporting Information also contained associated errors. The complete
Figure 8. Tg vs Vm.
TABLE 5: Mw, Vm, MR, and P fused salt
MW (g/mol)
Vm (cm3/mol)
MR (cm3/mol)
P
MAF EAF BAF PeAF 2MPAF 2MBAF EOAF 2POAF EOAA EAP EAB EAG EAL EOAL EAN EOAN EAHS
77.09 91.11 119.17 133.19 119.17 133.19 107.11 121.14 121.14 119.16 133.19 121.14 135.16 151.16 108.10 124.10 143.16
70.92 87.69 123.10 140.20 121.85 138.02 90.47 105.89 103.01 117.06 135.91 101.88 121.77 123.10 88.90 98.10 99.56
24.49 30.33 43.17 49.26 42.81 48.73 33.25 38.53 37.77 40.59 47.46 37.37 43.86 45.22 31.72 34.27 35.31
181.7 218.4 295.7 333.2 288.0 325.2 256.9 276.1 275.9 277.3 317.0 270.0 304.9 338.5 233.1 261.7 272.7
corrected Supporting Information file, including corrections to the molar refractivity and Parachor plots, has been reposted with the original article. 10.1021/jp068102k Published on Web 12/01/2006
