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 |
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.0 | PE | Coleman, Green, et al., 1979 | LLK |
| 8.65 ± 0.05 | PE | Coleman, Green, et al., 1979 | Vertical value; LLK |
References
Go To: Top, 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.
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]
Coleman, Green, et al., 1979
Coleman, A.W.; Green, J.C.; Hayes, A.J.; Seddon, E.A.; Lloyd, D.R.; Niwa, Y.,
A comparison of the electronic structure of some group 6A dimetal tetracarboxylates using photoelectron spectroscopy,
J. Chem. Soc. Dalton Trans., 1979, 75, 1057. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- 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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