Germane, tetrapropyl-
- Formula: C12H28Ge
- Molecular weight: 244.99
- IUPAC Standard InChIKey: XSYFWJCOPKYIQN-UHFFFAOYSA-N
- CAS Registry Number: 994-65-0
- 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: Tetrapropylgermane; tetra-n-Propylgermanium; Tetrapropylgermanium
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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: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -228.6 ± 5.3 | kJ/mol | Review | Martinho Simões |
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: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -290.1 ± 3.3 | kJ/mol | Review | Martinho Simões | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -8972.6 ± 2.0 | kJ/mol | CC-SB | Pope and Skinner, 1964 | Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970. |
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:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 61.5 ± 4.2 | kJ/mol | CC-SB | Pope and Skinner, 1964 | MS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
54.7 | 368. | A | Stephenson and Malanowski, 1987 | Based on data from 353. to 493. K.; AC |
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 |
---|---|---|---|---|---|
389.59 to 497.69 | 3.97747 | 1573.049 | -106.148 | Mogul, Hochberg, et al., 1974 | Coefficents calculated by NIST from author's data. |
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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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 | J.DE RIDDER UTRECHT UNIVERSITY, UTRECHT, HOLLAND |
NIST MS number | 11948 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Pope and Skinner, 1964
Pope, A.E.; Skinner, H.A.,
Thermochemistry of metallic alkyls. Part 12.?Heat of combustion of tetraethyl germanium and of tetrapropyl germanium,
Trans. Faraday Soc., 1964, 60, 1404, https://doi.org/10.1039/tf9646001404
. [all data]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds
in Academic Press, New York, 1970. [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]
Mogul, Hochberg, et al., 1974
Mogul, Philip H.; Hochberg, Marc C.; Michiel, Robert; Nestel, Glenn K.; Wamsley, Brian L.; Coren, Seth D.,
Physical properties of tetra-n-alkylgermanes (C1-C6),
J. Chem. Eng. Data, 1974, 19, 1, 4-6, https://doi.org/10.1021/je60060a029
. [all data]
Notes
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- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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