Selected ATcT [1, 2] enthalpy of formation based on version 1.172 of the Thermochemical Network [3]
This version of ATcT results[3] was generated by additional expansion of version 1.156 to include species relevant to a study of photodissociation of formamide[4].Platinum atom cation
2D Image:
![[Pt+]](../images/1962.png)
| ΔfH°(0 K) | ΔfH°(298.15 K) | Uncertainty | Units |
|---|---|---|---|
| 1427.8 | 1428.3 | ± 1.7 | kJ/mol |
3D Image of Pt+ (g)
Top contributors to the provenance of ΔfH° of Pt+ (g)
The 4 contributors listed below account for 95.6% of the provenance of ΔfH° of Pt+ (g).Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.
| Contribution (%) | TN ID | Reaction | Measured Quantity | Reference |
|---|---|---|---|---|
| 63.1 | 9796.5 | Pt (cr,l) → Pt (g) | ΔrG°(1824 K) = 293.5 ± 2.1 kJ/mol | Plante 1970, 3rd Law |
| 15.7 | 9796.4 | Pt (cr,l) → Pt (g) | ΔrG°(1994 K) = 269.6 ± 4.2 kJ/mol | Hampson 1961, 3rd Law, est unc |
| 8.9 | 9796.1 | Pt (cr,l) → Pt (g) | ΔrG°(2237 K) = 231.1 ± 5.0 (×1.114) kJ/mol | Koch 1969, 3rd Law, est unc |
| 7.7 | 9796.2 | Pt (cr,l) → Pt (g) | ΔrG°(1726 K) = 308.6 ± 6.0 kJ/mol | Dreger 1960, 3rd Law, est unc |
Top 10 species with enthalpies of formation correlated to the ΔfH° of Pt+ (g)
The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.
| Correlation Coefficent (%) | Species Name | Formula | Image | ΔfH°(0 K) | ΔfH°(298.15 K) | Uncertainty | Units | Relative Molecular Mass | ATcT ID |
|---|---|---|---|---|---|---|---|---|---|
| 100.0 | Platinum | Pt (g) | ![[Pt]](../images/1368.png) | 563.4 | 564.3 | ± 1.7 | kJ/mol | 195.0780 ± 0.0020 | 7440-06-4*0 |
| 100.0 | Platinum atom anion | Pt- (g) | ![[Pt-]](../images/3240.png) | 358.4 | 358.9 | ± 1.7 | kJ/mol | 195.0785 ± 0.0020 | 40817-31-0*0 |
| 87.6 | Platinum dimer | Pt2 (g) | ![[Pt].[Pt]](../images/1963.png) | 823.5 | 822.5 | ± 3.9 | kJ/mol | 390.1560 ± 0.0040 | 12596-95-1*0 |
| 85.9 | Platinum dimer anion | [Pt2]- (g) | ![[Pt].[Pt-]](../images/3243.png) | 640.3 | 639.8 | ± 3.9 | kJ/mol | 390.1565 ± 0.0040 | 153298-77-2*0 |
| 78.1 | Platinum dimer cation | [Pt2]+ (g) | ![[Pt].[Pt+]](../images/3242.png) | 1661.0 | 1659.6 | ± 4.3 | kJ/mol | 390.1555 ± 0.0040 | 73146-08-4*0 |
| 45.0 | Platinum hydride | PtH (g) | ![[Pt][H]](../images/1964.png) | 451.6 | 450.7 | ± 3.8 | kJ/mol | 196.0859 ± 0.0020 | 13966-55-7*0 |
| 34.4 | Platinum hydride cation | [PtH]+ (g) | ![[Pt+][H]](../images/1965.png) | 1363.1 | 1382.3 | ± 4.9 | kJ/mol | 196.0854 ± 0.0020 | 87882-39-1*0 |
Most Influential reactions involving Pt+ (g)
Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.| Influence Coefficient | TN ID | Reaction | Measured Quantity | Reference |
|---|---|---|---|---|
| 0.635 | 9804.1 | [PtH]+ (g) → Pt+ (g) + H (g) | ΔrH°(0 K) = 279.3 ± 5.7 kJ/mol | Irikura 2023 |
| 0.558 | 9797.1 | Pt (g) → Pt+ (g) | ΔrH°(0 K) = 72257.8 ± 0.8 cm-1 | Jakubeh 2000 |
| 0.441 | 9797.2 | Pt (g) → Pt+ (g) | ΔrH°(0 K) = 72256.6 ± 0.9 cm-1 | Marijnissen 1995 |
| 0.000 | 9797.3 | Pt (g) → Pt+ (g) | ΔrH°(0 K) = 72230 ± 50 cm-1 | Blaise 1992 |
| 1 |
B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner, Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited. J. Phys. Chem. A 108, 9979-9997 (2004) [DOI: 10.1021/jp047912y] |
|
| 2 |
B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner, Active Thermochemical Tables: Thermochemistry for the 21st Century. J. Phys. Conf. Ser. 16, 561-570 (2005) [DOI: 10.1088/1742-6596/16/1/078] |
|
| 3 |
B. Ruscic and D. H. Bross, Active Thermochemical Tables (ATcT) values based on ver. 1.172 of the Thermochemical Network (2024); available at ATcT.anl.gov |
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| 4 |
K. L. Caster, N. A. Seifert, B. Ruscic, A. W. Jasper, and K. Prozument, Dynamics of HCN, NHC, and HNCO Formation in the 193 nm Photodissociation of Formamide J. Phys. Chem. A (in press) (2024) [DOI: 10.1021/acs.jpca.4c02232] |
|
| 5 |
B. Ruscic, Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables. Int. J. Quantum Chem. 114, 1097-1101 (2014) [DOI: 10.1002/qua.24605] |
|
| 6 |
B. Ruscic and D. H. Bross, Thermochemistry Computer Aided Chem. Eng. 45, 3-114 (2019) [DOI: 10.1016/B978-0-444-64087-1.00001-2] |
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.0005 kJ/mol.
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.