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:


IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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IR spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner SRD/NIST
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin EPA-IR VAPOR PHASE LIBRARY
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

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

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1994
NIST MS number 135444

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References