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4-Butyl-N-(4-ethoxybenzylidene)aniline

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple305.62KN/ASorai, Nakamura, et al., 1974Nemactic liquid crystal phase; Uncertainty assigned by TRC = 0.02 K; TRC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
27.090305.62Sorai, Nakamura, et al., 1974, 2Crystal-nematic.; DH
27.090305.62Sorai, Nakamura, et al., 1973Solid - nematic.; DH

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
88.71305.62Sorai, Nakamura, et al., 1974, 2Crystal-nematic.; DH
88.71305.62Sorai, Nakamura, et al., 1973Solid; DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.553349.08liquidliquidSorai, Nakamura, et al., 1974, 2DH
1.553349.08liquidliquidSorai, Nakamura, et al., 1973DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
4.524349.08liquid, Nematicliquid, isotropicSorai, Nakamura, et al., 1974, 2DH
4.524349.08liquid, Nematicliquid, isotropicSorai, Nakamura, et al., 1973DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Sorai, Nakamura, et al., 1974
Sorai, M.; Nakamura, T.; Seki, S., Heat capacity of nematogenic N-p-ethoxybenzylidene-p'-butylaniline between 14 and 375 K, Bull. Chem. Soc. Jpn., 1974, 47, 2192-6. [all data]

Sorai, Nakamura, et al., 1974, 2
Sorai, M.; Nakamura, T.; Seki, S., Heat capacity of nematogenic N-p-ethoxybenzylidene-p'-butylaniline between 14 and 375 K, Bull. Chem. Soc. Japan, 1974, 47, 2192-2196. [all data]

Sorai, Nakamura, et al., 1973
Sorai, M.; Nakamura, T.; Seki, S., Thermal studies of benzylideneaniline liquid crystals, Liq. Cryst., 1973, Proc. [all data]


Notes

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