Tetraacetato dichromium
- Formula: C8H12Cr2O8
- Molecular weight: 340.1683
- IUPAC Standard InChI: InChI=1S/4C2H4O2.2Cr/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4
- IUPAC Standard InChIKey: COSOKRWKZBULAU-UHFFFAOYSA-J
- CAS Registry Number: 15020-15-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Dichromium tetraacetate
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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 as indicated in comments:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 71.6 ± 2.4 | kcal/mol | RSC | Carson, 1984 | MS |
| ΔsubH° | 75.0 ± 6.5 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Daamen, Ernsting, et al., 1979.; AC |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 71.6 ± 2.4 | 335. | ME,TE | Carson, 1984, 2 | Based on data from 330. to 340. K.; AC |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Carson, 1984
Carson, A.S.,
J. Chem. Thermodyn., 1984, 16, 427. [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]
Daamen, Ernsting, et al., 1979
Daamen, H.; Ernsting, J.M.; Oskam, A.,
Vapour pressure measurements on M(CO)5L (M = Cr, Mo, W; L = piperidine, pyridine, pyrazine, pyrazole, thiazole),
Thermochimica Acta, 1979, 33, 217-223, https://doi.org/10.1016/0040-6031(79)87044-6
. [all data]
Carson, 1984, 2
Carson, A.S.,
The molar enthalpy of dehydration of Cr2(O2CCH3)4·2H2O(cr) and the molar enthalpies of sublimation of Cr2(O2CCH3)4(cr), Mo2(O2CCH3)4(cr), and Mo2(O2CCF3)4(cr),
The Journal of Chemical Thermodynamics, 1984, 16, 5, 427-429, https://doi.org/10.1016/0021-9614(84)90198-8
. [all data]
Notes
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- Symbols used in this document:
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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