Phase Change Enthalpies and Entropies of Liquid Crystals Page: 1,074
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1074 W. E. ACREE, JR. AND J. S. CHICKOS
TABLE 11. The solid-liquid phase change properties of liquid crystals-Continued
Compound
Tfus (erp) 0 Tfus
AHpce 0 Stpce (exp) A0 Stpce
Molecular Formula Transition T (K) (kJ. mol -1) A Spce (J. K-1 mol 1) (estimated) Ref.
Nem/Liq 397.8 0.92 2.31 127.74 107.2 [9]
Independent values from another reference
Sol/Nem 388.7 26.90 69.21
Nem/Liq 396.8 0.67 1.69 70.90 107.2 [179]
Note: Sol/Sol phase transition likely occurs and was not included in the authors' measured values.
Independent values from another reference
Sol/Sol 376.0 20.7 55.05
Sol/Nem 389.0 27.5 70.69
Nem/Liq 398.0 1.03 2.59 128.33 107.2 [440]
C18H2404 4,4'-di(2-methoxyethoxy)biphenyl
Sol/Smec 409.5 17.53 42.80
Smec/Liq 412.4 22.67 54.97 97.77 111.6 [102]
C18H2604 4-decyloxycarbonylbenzoic acid
Sol/Smec 342.2 9.71 28.38
Smec/Liq 386.5 29.72 76.90 105.28 140.8 [53]
C18H27N05 4-undecyloxy-3-nitrobenzoic acid
Sol/Smec 364.2 22.6 62.05
Smec/Liq 365.2 2.2 6.02 68.07 162.9 [1]
C18H2803 4-undecyloxybenzoic acid
Sol/Smec 369.2 40.17 108.80
Smec/Nem 402.2 2.09 5.20
Nem/Liq 413.2 2.51 6.07 120.07 146.1 [156]
Independent values from another reference
Sol/Smec 378.4 34.23 90.46
Smec/Nem 404.7 1.99 4.92
Nem/Liq 415.6 2.37 5.70 101.08 [418]
C18H3407 6-O-dodecanoyl- a-D-galactopyranose
Sol/Smec 367.2 23.16 63.07
Smec/Liq 455.2 4.02 8.83 71.90 164.7 [39]
C18H3605S 6-S-dodecyl-6-thio- a-D-galactopyranose
Sol/Smec 382.2 44.07 115.31
Smec/Liq 458.2 2.84 6.20 121.51 192.6 [39]
C18H3606 6-O-dodecyl- a-D-galactopyranose
Sol/Smec 392.2 44.53 113.54
Smec/Liq 444.2 1.29 2.90 116.44 195.2 [39]
C18gH3606 dodecyl-/3-D-glucopyranoside
Sol/Smec Not reported in paper
Smec/Liq 427.0 1.55 3.63 [421]
C18H3804 1,2,17,18-tetrahydroxyoctadecane
Sol/Meso 352.2 21.5 61.04
Meso/Meso 407.2 11.0 27.01
Meso/Liq 410.2 14.6 35.59 123.64 234.8 [145]
C18H3806 6-O-dodecyl-D-galacitol
Sol/Smec 415.2 66.42 159.97
Smec/Liq 444.2 1.49 3.35 163.32 215.2 [183]C19H13F9SO 2-(perfluorobutyl)ethyl 4-phenylthiobenzoate
Sol/Smec 319.7 24.9 77.89
Smec/Liq 406.2 15.7 38.65 116.54 NA [38]
J. Phys. Chem. Ref. Data, Vol. 35, No. 3, 2006Downloaded 25 Feb 2013 to 129.120.139.109. Redistribution subject to AlP license or copyright; see http:l//jpcrd.aip. rgabout/rights_and_permissions
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Acree, William E. (William Eugene) & Chickos, James S. Phase Change Enthalpies and Entropies of Liquid Crystals, article, July 17, 2006; [College Park, Maryland]. (https://digital.library.unt.edu/ark:/67531/metadc172344/m1/24/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Arts and Sciences.