Dicarbonylacetylacetonato iridium
- Formula: C7H7IrO4
- Molecular weight: 347.345
- CAS Registry Number: 14023-80-4
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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° | 22.0 ± 0.31 | kcal/mol | N/A | Jesse, Ernsting, et al., 1978 | MS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.5 ± 0.65 | 306. to 333. | ME | Morozova, Semyannikov, et al., 2009 | AC |
22.0 ± 0.31 | 306. | ME | Jesse, Ernsting, et al., 1978, 2 | Based on data from 286. to 325. K. See also Stephenson and Malanowski, 1987.; AC |
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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C9H15IrO2 (cr) + 2 (g) = C7H7IrO4 (cr) + 2
(g)
By formula: C9H15IrO2 (cr) + 2CO (g) = C7H7IrO4 (cr) + 2C2H4 (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -17.7 ± 1.1 | kcal/mol | DSC | Jesse, Baks, et al., 1978 |
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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.0 | PE | Van Dam, Terpstra, et al., 1980 | |
8.6 ± 0.1 | EI | Bonati, Distefano, et al., 1971 | |
8.42 | PE | Van Dam, Terpstra, et al., 1980 | Vertical value |
References
Go To: Top, Phase change data, Reaction thermochemistry 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.
Jesse, Ernsting, et al., 1978
Jesse, A.C.; Ernsting, J.M.; Stufkens, D.J.; Vrieze, K.,
Thermochim. Acta, 1978, 25, 69. [all data]
Morozova, Semyannikov, et al., 2009
Morozova, N.B.; Semyannikov, P.P.; Trubin, S.V.; Stabnikov, P.P.; Bessonov, A.A.; Zherikova, K.V.; Igumenov, I.K.,
Vapor pressure of some volatile iridium(I) compounds with carbonyl, acetylacetonate and cyclopentadienyl ligands,
J Therm Anal Calorim, 2009, 96, 1, 261-266, https://doi.org/10.1007/s10973-008-9551-8
. [all data]
Jesse, Ernsting, et al., 1978, 2
Jesse, A.C.; Ernsting, J.M.; Stufkens, D.J.; Vrieze, K.,
Vapour pressure measurements on (acac)M(substituted olefin)2 and (acac)M(CO)2 (M = Rh(I), Ir(I)),
Thermochimica Acta, 1978, 25, 1, 69-75, https://doi.org/10.1016/0040-6031(78)80041-0
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Jesse, Baks, et al., 1978
Jesse, A.C.; Baks, A.; Stufkens, D.J.; Vrieze, K.,
Inorg. Chim. Acta, 1978, 29, 177. [all data]
Van Dam, Terpstra, et al., 1980
Van Dam, H.; Terpstra, A.; Stufkens, D.J.; Oskam, A.,
UV photoelectron spectroscopic studies of the metal-olefin bond. 2. Bonding in (β-diketonato)rhodium(I) and -iridium(I) carbonyl and olefin complexes,
Inorg. Chem., 1980, 19, 3448. [all data]
Bonati, Distefano, et al., 1971
Bonati, F.; Distefano, G.; Innorta, G.; Minghetti, G.; Pignataro, S.,
Ionization energies of rhodium and iridium β-diketonates: on the nature of the last occupied orbital,
Z. Anorg. Allg. Chem., 1971, 386, 107. [all data]
Notes
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- Symbols used in this document:
ΔrH° Enthalpy of reaction 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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