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

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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
solid,1 bar100.810cal/mol*KN/ASorai, Nakamura, et al., 1974 

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
102.55298.15Sorai, Nakamura, et al., 1974T = 14 to 375 K.
102.300.Sorai, Nakamura, et al., 1973T = 14 to 375 K. Data estimated from graph.

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, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple305.62KN/ASorai, Nakamura, et al., 1974, 2Nemactic liquid crystal phase; Uncertainty assigned by TRC = 0.02 K; TRC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
6.4747305.62Sorai, Nakamura, et al., 1974Crystal-nematic.; DH
6.4747305.62Sorai, Nakamura, et al., 1973Solid - nematic.; DH

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
21.20305.62Sorai, Nakamura, et al., 1974Crystal-nematic.; DH
21.20305.62Sorai, Nakamura, et al., 1973Solid; DH

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.3712349.08liquidliquidSorai, Nakamura, et al., 1974DH
0.3712349.08liquidliquidSorai, Nakamura, et al., 1973DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
1.081349.08liquid, Nematicliquid, isotropicSorai, Nakamura, et al., 1974DH
1.081349.08liquid, 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

Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes

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. 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]

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. Jpn., 1974, 47, 2192-6. [all data]


Notes

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