4-Butyl-N-(4-ethoxybenzylidene)aniline
- Formula: C19H23NO
- Molecular weight: 281.3920
- IUPAC Standard InChIKey: DBOAVDSSZWDGTH-UHFFFAOYSA-N
- CAS Registry Number: 29743-08-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: p-Ethoxybenzylidene p-butylaniline; Benzenamine, 4-butyl-N-[(4-ethoxyphenyl)methylene]-; 4-Butyl-N-[(4-ethoxyphenyl)methylidene]aniline; N-p-Ethoxybenzylidene-p-butylaniline; N-(4'-Ethoxybenzylidene)-4-n-butylaniline; N-(4-Ethoxybenzylidene)-4-butylaniline; p-[(p-Ethoxybenzylidene)amino]butylbenzene; N-p-Ethoxybenzylidene-p'-butylaniline
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Phase change data
Go To: Top, IR Spectrum, 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 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 |
---|---|---|---|---|---|
Ttriple | 305.62 | K | N/A | Sorai, Nakamura, et al., 1974 | Nemactic liquid crystal phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
27.090 | 305.62 | Sorai, Nakamura, et al., 1974, 2 | Crystal-nematic.; DH |
27.090 | 305.62 | Sorai, Nakamura, et al., 1973 | Solid - nematic.; DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
88.71 | 305.62 | Sorai, Nakamura, et al., 1974, 2 | Crystal-nematic.; DH |
88.71 | 305.62 | Sorai, Nakamura, et al., 1973 | Solid; DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.553 | 349.08 | liquid | liquid | Sorai, Nakamura, et al., 1974, 2 | DH |
1.553 | 349.08 | liquid | liquid | Sorai, Nakamura, et al., 1973 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
4.524 | 349.08 | liquid, Nematic | liquid, isotropic | Sorai, Nakamura, et al., 1974, 2 | DH |
4.524 | 349.08 | liquid, Nematic | liquid, isotropic | Sorai, Nakamura, et al., 1973 | DH |
IR Spectrum
Go To: Top, 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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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 |
Mass spectrum (electron ionization)
Go To: Top, 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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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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 |
References
Go To: Top, 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. 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
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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