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Diazene, bis(4-butoxyphenyl)-, 1-oxide

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Phase change data

Go To: Top, Gas phase ion energetics 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple377.2KN/AParkhomenko, Pivovarov, et al., 1990Nemactic liquid crystal phase; Uncertainty assigned by TRC = 0.8 K; meas. in Calvet microcalorimter, DAK-1; TRC
Ttriple375.2KN/AArnold, 1964Smectic liquid crystal phase; Uncertainty assigned by TRC = 0.1 K; TRC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.4952315.5crystaline, IVcrystaline, IIIBamezai, Godlewska, et al., 1990DH
0.222323.4crystaline, IIIcrystaline, IIBamezai, Godlewska, et al., 1990DH
0.3752360.5crystaline, IIcrystaline, IBamezai, Godlewska, et al., 1990DH
5.0096376.7crystaline, IliquidBamezai, Godlewska, et al., 1990c,I to nematic liquid.; DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
7.909315.5crystaline, IVcrystaline, IIIBamezai, Godlewska, et al., 1990DH
0.688323.4crystaline, IIIcrystaline, IIBamezai, Godlewska, et al., 1990DH
1.04360.5crystaline, IIcrystaline, IBamezai, Godlewska, et al., 1990DH
13.30376.7crystaline, IliquidBamezai, Godlewska, et al., 1990c,I; DH

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:


Gas phase ion energetics data

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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
7.61PEMillefiori, Ciliberto, et al., 1981Vertical value; LLK

Mass spectrum (electron ionization)

Go To: Top, Phase change data, Gas phase ion energetics data, 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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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 Japan AIST/NIMC Database- Spectrum MS-NW-4455
NIST MS number 232965

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References

Go To: Top, Phase change data, Gas phase ion energetics data, 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.

Parkhomenko, Pivovarov, et al., 1990
Parkhomenko, V.D.; Pivovarov, A.A.; Sytnik, S.V., Thermophysical properties of oxamide, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1990, 33, 6, 53-5. [all data]

Arnold, 1964
Arnold, H., Calorimetry of crystalline-liquid materials: II results of the measurements on 12 homologous dialkoxy azeoxy benzenes, Z. Phys. Chem. (Leipzig), 1964, 226, 146. [all data]

Bamezai, Godlewska, et al., 1990
Bamezai, R.K.; Godlewska, M.; Massalska-arodz, M.; Sciesinski, J.; Witko, W., The adiabatic calorimetry study of the polymorphism of solid 4,4'-di-n-butyloxyazoxybenzene, Phase Transitions, 1990, 27(2-3), 113-119. [all data]

Millefiori, Ciliberto, et al., 1981
Millefiori, S.; Ciliberto, E.; Millefiori, A.; Zerbo, M.A., Gas phase U. V. photoelectron investigation of azoxybenzene and 4,4'-di(n-alkoxy)azoxybenzenes, Spectromchim. Acta Part A, 1981, 37, 605. [all data]


Notes

Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References