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Hydrazine, trimethyl-

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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
liquid231.96J/mol*KN/AAston, Zolki, et al., 1955 

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
185.94292.15Aston, Zolki, et al., 1955T = 12 to 294 K.

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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Ttriple201.24KN/AAston, Zolki, et al., 1955, 2Uncertainty assigned by TRC = 0.02 K; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
33.259292.15N/AAston, Zolki, et al., 1955P = 19.83 kPa; DH
34.6272.N/AAston, Zolki, et al., 1955Based on data from 257. - 287. K.; AC
33.4 ± 0.1292.CAston, Zolki, et al., 1955AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
113.84292.15Aston, Zolki, et al., 1955P; DH

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
256.93 - 286.984.264121204.436-49.732Aston, Zolki, et al., 1955Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
9.485201.24Aston, Zolki, et al., 1955DH
9.49201.2Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
47.13201.24Aston, Zolki, et al., 1955DH

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

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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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
7.9 ± 0.1EIDibeler, Franklin, et al., 1959RDSH
8.74PERademacher, 1975Vertical value; LLK
8.67PENelsen and Buschek, 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
N2?+13.2 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
C2H4N?+11.7 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
N2H2?+11.9 ± 1.0?EIDibeler, Franklin, et al., 1959RDSH
N2H3?+11.7 ± 1.0?EIDibeler, Franklin, et al., 1959RDSH
CH3+14.0 ± 0.5?EIDibeler, Franklin, et al., 1959RDSH
C2H5N2+11.1 ± 0.4?EIDibeler, Franklin, et al., 1959RDSH
C2H6N+11.1 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
C2H7N2+9.4 ± 0.1CH3EIDibeler, Franklin, et al., 1959RDSH
C3H7+10.7 ± 0.3?EIDibeler, Franklin, et al., 1959RDSH
C3H7N2+10.7 ± 0.1H2+HEIDibeler, Franklin, et al., 1959RDSH
C3H8N2+8.2 ± 0.1H2EIDibeler, Franklin, et al., 1959RDSH
C3H9N2+8.9 ± 0.1HEIDibeler, Franklin, et al., 1959RDSH
N2H4+11.9 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH

Mass spectrum (electron ionization)

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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: 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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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 ATLAS OF MASS SPECTRA OF ORGANIC COMPOUNDS, V. A. KOPTYUG, ED.
NIST MS number 64451

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.


UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Bol'shakov, et al., 1969
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 20197
Instrument SF-4

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

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

Aston, Zolki, et al., 1955
Aston, J.G.; Zolki, T.P.; Wood, J.L., The thermodynamic properties and configuration of trimethylhydrazine identification and correction for a major impurity, J. Am. Chem. Soc., 1955, 77, 281-284. [all data]

Aston, Zolki, et al., 1955, 2
Aston, J.G.; Zolki, T.P.; Wood, J.L., The thermodynamic properties and configuration of trimethylhydrazine identification and correction for a major impurity, J. Am. Chem. Soc., 1955, 77, 281. [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]

Dibeler, Franklin, et al., 1959
Dibeler, V.H.; Franklin, J.L.; Reese, R.M., Electron impact studies of hydrazine and the methyl-substituted hydrazines, J. Am. Chem. Soc., 1959, 81, 68. [all data]

Rademacher, 1975
Rademacher, P., Acyclische Hydrazine, Chem. Ber., 1975, 108, 1548. [all data]

Nelsen and Buschek, 1974
Nelsen, S.F.; Buschek, J.M., Photoelectron spectra of hydrazines. III. Evidence for similar lone pair-lone pair dihedral angles for acyclic hydrazines, J. Am. Chem. Soc., 1974, 96, 2392. [all data]

Bol'shakov, et al., 1969
Bol'shakov, G.F., et al., Ultraviolet spectra of heteroorganic compounds, 1969, 222. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, References