- Formula: C18H21NO2
- Molecular weight: 283.3648
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: DFUYRNLWIOXVQP-CPNJWEJPSA-N
- CAS Registry Number: 30633-94-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Condensed phase thermochemistry data
Go To: Top, Phase change data, IR Spectrum, References, Notes
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
|S°solid,1 bar||100.57||cal/mol*K||N/A||Sorai and Seki, 1973|
Constant pressure heat capacity of solid
|Cp,solid (cal/mol*K)||Temperature (K)||Reference||Comment|
|107.82||300.||Sorai and Seki, 1973||T = 12 to 375 K.|
Phase change data
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, References, Notes
Data compiled as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
|Tfus||317.||K||N/A||Sorai and Seki, 1971||DH|
|Ttriple||314.52||K||N/A||Sorai and Seki, 1973, 2||Uncertainty assigned by TRC = 0.02 K; TRC|
Enthalpy of fusion
|fusH (kcal/mol)||Temperature (K)||Reference||Comment|
|5.8329||314.52||Sorai and Seki, 1973||DH|
Entropy of fusion
|fusS (cal/mol*K)||Temperature (K)||Reference||Comment|
|17.03||314.52||Sorai and Seki, 1973||DH|
Temperature of phase transition
|Ttrs (K)||Initial Phase||Final Phase||Reference||Comment|
|337.5||liquid||liquid||Sorai and Seki, 1971||Nematic mesophase to isotropic.; DH|
Enthalpy of phase transition
|Htrs (kcal/mol)||Temperature (K)||Initial Phase||Final Phase||Reference||Comment|
|0.2121||335.65||liquid||liquid||Sorai and Seki, 1973||DH|
Entropy of phase transition
|Strs (cal/mol*K)||Temperature (K)||Initial Phase||Final Phase||Reference||Comment|
|0.631||335.65||liquid, Nematic||liquid, isotropic||Sorai and Seki, 1973||DH|
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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|Owner||NIST Standard Reference Data Program|
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
|Origin||Sadtler Research Labs Under US-EPA Contract|
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes
Sorai and Seki, 1973
Sorai, M.; Seki, S., Heat capacity of N-(o-hydroxy-p-methoxybenzylidene)-p-butylaniline: a glassy nematic liquid crystal, Mol. Cryst. Liq. Cryst., 1973, 23, 299-327. [all data]
Sorai and Seki, 1971
Sorai, M.; Seki, S., Glassy liquid crystal of the nematic phase of N-(o-Hydroxy-p-methoxybenzylidene)-p-butylaniline, Bull. Chem. Soc. Japan, 1971, 44, 2887. [all data]
Sorai and Seki, 1973, 2
Sorai, M.; Seki, S., Heat capacity of N-(o-hydroxy-p-methoxybenzylidene)-p-butylaniline: A glassy nematic liquid crystal, Mol. Cryst. Liq. cryst., 1973, 23, 299. [all data]
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) Tfus Fusion (melting) point Ttriple Triple point temperature Ttrs Temperature of phase transition Htrs Enthalpy of phase transition Strs Entropy of phase transition fusH Enthalpy of fusion fusS Entropy of fusion
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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