Tetraacetato dichromium
- Formula: C8H12Cr2O8
- Molecular weight: 340.1683
- 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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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 | -476.5 ± 3.2 | 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 | -548.1 ± 2.1 | kcal/mol | Review | Martinho Simões |
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 |
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 | Chemical Concepts |
NIST MS number | 156356 |
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]
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
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- Symbols used in this document:
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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