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1,2-Propanediamine

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Gas 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-12.81 ± 0.11kcal/molCcrGood and Moore, 1970 

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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-23.4 ± 0.1kcal/molCcrGood and Moore, 1970ALS
Quantity Value Units Method Reference Comment
Deltacliquid-600.35 ± 0.08kcal/molCcrGood and Moore, 1970ALS
Quantity Value Units Method Reference Comment
liquid59.099cal/mol*KN/AMesserly, Finke, et al., 1975Includes 5.77 J/mol*K for mixing of D and L isomers.; DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
49.149298.15Messerly, Finke, et al., 1975T = 11 to 368 K.; DH

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil392.7KN/AWeast and Grasselli, 1989BS
Tboil394.1KN/AAnonymous, 1968TRC
Tboil390.5KN/ATimmermans and Mattaar, 1921Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Tfus236.0KN/AAnonymous, 1968TRC
Tfus236.0KN/AAnonymous, 1955Uncertainty assigned by TRC = 0.6 K; TRC
Quantity Value Units Method Reference Comment
Ttriple236.530KN/AMesserly, Finke, et al., 1975, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Deltavap10.6 ± 0.05kcal/molIPDouslin and Osborn, 2002See also Good and Moore, 1970.; AC
Deltavap10.5 ± 0.05kcal/molIPMesserly, Finke, et al., 1975Based on data from 242. - 293. K.; AC
Deltavap10.57 ± 0.05kcal/molVGood and Moore, 1970ALS
Deltavap10.6kcal/molN/AGood and Moore, 1970DRB

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
10.1308.AStephenson and Malanowski, 1987Based on data from 293. - 393. K.; AC
11.3278.A,IPStephenson and Malanowski, 1987Based on data from 242. - 293. K. See also Messerly, Finke, et al., 1975.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
4.402236.5Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
0.07222.Domalski and Hearing, 1996CAL
18.62236.5

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.0161222.0crystaline, IIcrystaline, IMesserly, Finke, et al., 1975DH
4.40311236.53crystaline, IliquidMesserly, Finke, et al., 1975DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.0727222.0crystaline, IIcrystaline, IMesserly, Finke, et al., 1975DH
18.62236.53crystaline, IliquidMesserly, Finke, et al., 1975DH

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:


Reaction 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(C3H11N2+ bullet 21,2-Propanediamine) + 1,2-Propanediamine = (C3H11N2+ bullet 31,2-Propanediamine)

By formula: (C3H11N2+ bullet 2C3H10N2) + C3H10N2 = (C3H11N2+ bullet 3C3H10N2)

Quantity Value Units Method Reference Comment
Deltar19.5kcal/molHPMSWincel and Herman, 1973gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
Deltar54.7cal/mol*KHPMSWincel and Herman, 1973gas phase; Entropy change is questionable

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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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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 NIST Mass Spectrometry Data Center, 1998.
NIST MS number 291326

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.


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

Good and Moore, 1970
Good, W.D.; Moore, R.T., Enthalpies of formation of ethylenediamine, 1,2,-propanediamine, 1,2,-butanediamine, 2-methyl-1,2-propanediamine, and isobutylamine C-N and N-F Thermochemical bond energies, J. Chem. Eng. Data, 1970, 15, 150-154. [all data]

Messerly, Finke, et al., 1975
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodynam., 1975, 7, 1029-1046. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Anonymous, 1968
Anonymous, X., Chemicals and Plastics Physical Properties, 1968, Union Carbide Corp., product bulletin, 1968. [all data]

Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F., Freezing points of orgainic substances VI. New experimental determinations., Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]

Anonymous, 1955
Anonymous, R., , Am. Pet. Inst. Res. Proj. 45, Tech. Rep. 14, No. 1, Ohio State Univ., 1955. [all data]

Messerly, Finke, et al., 1975, 2
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodyn., 1975, 7, 1029-46. [all data]

Douslin and Osborn, 2002
Douslin, D.R.; Osborn, A., Pressure measurements in the 0.01-30 torr range with an inclined-piston gauge, J. Sci. Instrum., 2002, 42, 6, 369-373, https://doi.org/10.1088/0950-7671/42/6/301 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [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]

Wincel and Herman, 1973
Wincel, H.; Herman, J.A., Photoionization Study of Clustering Reactions in Diamines: Ethane-1,2-diamine, Propane-1,2-diamine and Propane-1,3-diamine, J. Chem. Soc. Faraday Trans., 1973, 69, 1797, https://doi.org/10.1039/f19736901797 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References