Hafnium, tetrakis(diethylamino)-
- Formula: C16H40HfN4
- Molecular weight: 467.01
- CAS Registry Number: 19824-55-6
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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 | -136.6 ± 6.9 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies -442.7 ± 3.8 kcal/mol for the enthalpy of formation of crystalline Hf(O-i-Pr)4 |
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 | -152.6 ± 6.5 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies -442.7 ± 3.8 kcal/mol for the enthalpy of formation of crystalline Hf(O-i-Pr)4 |
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 by: José A. Martinho Simões
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 16.0 ± 2.0 | kcal/mol | RSC | Lappert, Patil, et al., 1975 |
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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.15 | PE | Gibbins, Lappert, et al., 1975 | Vertical value |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, 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]
Lappert, Patil, et al., 1975
Lappert, M.F.; Patil, D.S.; Pedley, J.B.,
J. Chem. Soc., Chem. Commun., 1975, 830.. [all data]
Gibbins, Lappert, et al., 1975
Gibbins, S.G.; Lappert, M.F.; Pedley, J.B.; Sharp, G.J.,
Bonding studies of transition-metal complexes. Part II. Helium-I photoelectron spectra of homoleptic d0, d1, and d10 tetrakis(dialkylamides) of transition group 4B metals tungsten hexakis(dimethylamide),
J. Chem. Soc. Dalton Trans., 1975, 72. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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