Cr(Cp)(CO)3(H)
- Formula: C8H6CrO3
- Molecular weight: 202.1275
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Reaction 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
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Individual Reactions
(cr) +
(g) = 2C8H6CrO3 (cr)
By formula: C16H10Cr2O6 (cr) + H2 (g) = 2C8H6CrO3 (cr)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -3.32 ± 0.96 | kcal/mol | RSC | Landrum and Hoff, 1985 | The reaction enthalpy was obtained from the value for the reaction 2Cr(Cp)(CO)3(H)(cr) + 1,3-cy-C6H8(solution) = [Cr(Cp)(CO)3]2(cr) + cy-C6H10(solution), -23.5 ± 0.91 kcal/mol Landrum and Hoff, 1985, together with the calculated enthalpy for 1,3-cy-C6H8(l) + H2(g) = cy-C6H10(l), -112.2±1.3 Pedley, 1994. It was assumed that 1,3-cy-C6H8 and cy-C6H10 have similar solution enthalpies in heptane |
| ΔrH° | -3.6 ± 1.0 | kcal/mol | DSC | Landrum and Hoff, 1985 | The reaction enthalpy was obtained from the value for the reaction 2Cr(Cp)(CO)3(H)(cr) + 1,3-cy-C6H8(solution) = [Cr(Cp)(CO)3]2(cr) + cy-C6H10(solution), -23.5 ± 0.91 kcal/mol Landrum and Hoff, 1985, together with the calculated enthalpy for 1,3-cy-C6H8(l) + H2(g) = cy-C6H10(l), -112.2±1.3 Pedley, 1994. It was assumed that 1,3-cy-C6H8 and cy-C6H10 have similar solution enthalpies in heptane |
C8H6CrO3 (solution) + C13H20CrNaO2P (solution) = C13H21CrO2P (solution) + C8H5CrNaO3 (solution)
By formula: C8H6CrO3 (solution) + C13H20CrNaO2P (solution) = C13H21CrO2P (solution) + C8H5CrNaO3 (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -19.7 ± 0.41 | kcal/mol | RSC | Kiss, Nolan, et al., 1994 | solvent: Tetrahydrofuran |
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.
Landrum and Hoff, 1985
Landrum, J.T.; Hoff, C.D.,
J. Organometal. Chem., 1985, 282, 215. [all data]
Pedley, 1994
Pedley, J.B.,
Thermodynamic Data and Structures of Organic Compounds; Thermodynamics Research Center Data Series, Vol I, Thermodynamics Research Center, College Station, 1994. [all data]
Kiss, Nolan, et al., 1994
Kiss, G.; Nolan, S.P.; Hoff, C.D.,
Inorg. Chim. Acta, 1994, 227, 285. [all data]
Notes
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- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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