Germane, tetraphenyl-
- Formula: C24H20Ge
- Molecular weight: 381.06
- IUPAC Standard InChIKey: ILEXMONMGUVLRM-UHFFFAOYSA-N
- CAS Registry Number: 1048-05-1
- 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: Tetraphenylgermane; Tetraphenylgermanium
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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 | 104.8 ± 3.5 | kcal/mol | Review | Martinho Simões | Selected data |
ΔfH°gas | 245.7 ± 1.7 | kcal/mol | Review | Martinho Simões | |
ΔfH°gas | 143.8 ± 2.4 | kcal/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°solid | 67.3 ± 3.4 | kcal/mol | Review | Martinho Simões | Selected data |
ΔfH°solid | 208.2 ± 1.3 | kcal/mol | Review | Martinho Simões | |
ΔfH°solid | 106.3 ± 2.2 | kcal/mol | Review | Martinho Simões | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -3175.5 ± 2.0 | kcal/mol | CC-SB | Shaulov, Fedorov, et al., 1970 | |
ΔcH°solid | -3140.2 ± 3.3 | kcal/mol | CC-RB | Adams, Carson, et al., 1969 | Please also see Pedley and Rylance, 1977. |
ΔcH°solid | -3277.4 ± 1.0 | kcal/mol | CC-SB | Birr, 1962 |
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:
AC - William E. Acree, Jr., James S. Chickos
MS - José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 37.5 ± 1.0 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Adams, Carson, et al., 1969.; AC |
ΔsubH° | 40.3 ± 2.0 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Carson, Carson, et al., 1970.; AC |
ΔsubH° | 37.5 ± 1.0 | kcal/mol | CC-RB | Kana'an, 1974 | MS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
35.52 | 441. | A | Stephenson and Malanowski, 1987 | Based on data from 402. to 480. K.; AC |
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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.1 | PE | Novak and Potts, 1984 | LBLHLM |
8.95 | PE | Novak and Potts, 1984 | Vertical value; LBLHLM |
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 | Japan AIST/NIMC Database- Spectrum MS-IW-4531 |
NIST MS number | 236293 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Shaulov, Fedorov, et al., 1970
Shaulov, Yu.Kh.; Fedorov, A.K.; Genchel, V.G.,
Russ. J. Phys. Chem., 1970, 44, 146. [all data]
Adams, Carson, et al., 1969
Adams, G.P.; Carson, A.S.; Laye, P.G.,
Heats of combustion of organo-metallic compounds using a vacuum-jacketed, rotating, aneroid calorimeter. Heat of formation of germanium tetraphenyl,
Trans. Faraday Soc., 1969, 65, 113, https://doi.org/10.1039/tf9696500113
. [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]
Birr, 1962
Birr, K.-H.,
Z. Anorg. Allg. Chem., 1962, 315, 175. [all data]
Pilcher and Skinner, 1983
Pilcher, G.; Skinner, H.A.,
Thermochemistry of organometallic compounds, 1983, 43-90, https://doi.org/10.1002/9780470771686.ch2
. [all data]
Carson, Carson, et al., 1970
Carson, A.S.; Carson, E.M.; Laye, P.G.; Spencer, J.A.; Steele, W.V.,
Enthalpy of combustion of organo-metallic compounds measured with a vacuum-jacketed, rotating, aneroid calorimeter. The enthalpies of formation of germanium tetrabenzyl and di-germanium hexaphenyl,
Trans. Faraday Soc., 1970, 66, 2459, https://doi.org/10.1039/tf9706602459
. [all data]
Kana'an, 1974
Kana'an, A.S.,
J. Chem. Thermodyn., 1974, 6, 191. [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]
Novak and Potts, 1984
Novak, I.; Potts, A.W.,
The UV gas-phase photoelectron spectra of Group IVB tetraphenyl derivatives,
J. Organomet. Chem., 1984, 262, 17. [all data]
Notes
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- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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