tetrakis(1,1,1-trifluoro-2,4-pentanedionato)hafnium(IV)
- Formula: C20H16F12HfO8
- Molecular weight: 790.81
- CAS Registry Number: 17475-68-2
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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: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 20.2 ± 0.74 | 413. | GS | Morozova, Zherikova, et al., 2008 | Based on data from 403. to 423. K. |
| 19.9 ± 0.48 | 413. | N/A | Zherikova, Morozova, et al., 2008 | Based on data from 403. to 423. K. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 31.79 ± 0.43 | 376. | GS | Morozova, Zherikova, et al., 2008 | Based on data from 358. to 393. K. |
| 30.23 ± 0.43 | 358. to 398. | N/A | Zherikova, Morozova, et al., 2008 | |
| 31.00 ± 0.91 | 383. to 438. | GS | Matsubara and Kuwamoto, 1985 | |
| 29.80 ± 0.91 | 383. to 438. | GS | Matsubara and Kuwamoto, 1985 |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 9.58 | 398. | DSC | Zherikova, Morozova, et al., 2008 |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Morozova, Zherikova, et al., 2008
Morozova, Natalia B.; Zherikova, Ksenia V.; Baidina, Iraida A.; Sysoev, Sergei V.; Semyannikov, Pyotr P.; Yakovkina, Lyubov' V.; Smirnova, Tamara P.; Gelfond, Nikolay V.; Igumenov, Igor K.; Carta, Giovanni; Rossetto, Gilberto,
Volatile hafnium(IV) compounds with beta-diketonate and cyclopentadienyl derivatives,
Journal of Physics and Chemistry of Solids, 2008, 69, 2-3, 673-679, https://doi.org/10.1016/j.jpcs.2007.07.057
. [all data]
Zherikova, Morozova, et al., 2008
Zherikova, Ksenia V.; Morozova, Natalia B.; Zelenina, Ludmila N.; Sysoev, S.V.; Chusova, Tamara P.; Igumenov, I.K.,
Thermal properties of hafnium(IV) and zirconium(IV) β-diketonates,
J Therm Anal Calorim, 2008, 92, 3, 729-734, https://doi.org/10.1007/s10973-008-9027-x
. [all data]
Matsubara and Kuwamoto, 1985
Matsubara, Norio; Kuwamoto, Tooru,
Vapor pressures and enthalpies of sublimation and evaporation of trifluoroacetylacetonates in helium and helium containing the ligand vapor,
Inorg. Chem., 1985, 24, 17, 2697-2701, https://doi.org/10.1021/ic00211a022
. [all data]
Notes
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- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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