p-Anisaldehyde, azine
- Formula: C16H16N2O2
- Molecular weight: 268.3104
- IUPAC Standard InChIKey: SVAKQZXLNBBOTG-UHFFFAOYSA-N
- CAS Registry Number: 2299-73-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Benzaldehyde, 4-methoxy-, [(4-methoxyphenyl)methylene]hydrazone; p-Anisalazine; p-Anisaldazine; p-Methoxybenzaldazine; p-Methoxybenzaldehyde azine; Anisalazine; Anisaldazine; 4,4'-Dimethoxybenzylideneazine; 4-Methoxybenzaldehyde [(4-methoxyphenyl)methylidene]hydrazone; Benzaldehyde, 4-methoxy-, 2-[(4-methoxyphenyl)methylene]hydrazone; NSC 1987
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Phase change data
Go To: Top, 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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 442.0 | K | N/A | Barrall, Porter, et al., 1967 | Nemactic liquid crystal phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
29.750 | 442.0 | Barral, Porter, et al., 1967 | Solid-nematic transition.; DH |
29.75 | 442. | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
67.3 | 442.0 | Barral, Porter, et al., 1967 | Solid-nematic; DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.661 | 453.6 | liquid | liquid | Barral, Porter, et al., 1967 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.5 | 453.6 | liquid, Nematic | liquid, isotropic transition | Barral, Porter, et al., 1967 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Barrall, Porter, et al., 1967
Barrall, E.M.; Porter, R.S.; Johnson, J.F.,
Specific heats of nematic, smectic, and cholesteric liquid crystals by differential scanning calorimetry.,
J. Phys. Chem., 1967, 71, 895. [all data]
Barral, Porter, et al., 1967
Barral, E.M., II; Porter, R.S.; Johnson, J.F.,
Specific heats of nematic, smectic, and cholesteric liquid crystals by differential scanning calorimetry,
J. Phys. Chem., 1967, 71, 895-900. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point 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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