Gold dimer
- Formula: Au2
- Molecular weight: 393.933138
- CAS Registry Number: 12187-09-6
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Gas phase ion energetics data
Go To: Top, References, Notes
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.93930 ± 0.00060 | N/A | Leon, Yang, et al., 2013 | see also Leon, Yang, et al., 20132; B |
| 1.940 ± 0.035 | N/A | Zheng, Li, et al., 2007 | B |
| 1.940 ± 0.020 | LPES | Zhai, Kiran, et al., 2004 | Vertical Detachment Energy: 2.01±0.02 eV; B |
| 1.951 ± 0.050 | LPES | Taylor, Pettiettehall, et al., 1992 | EA set as 0.2 eV above onset to correct for unresolved hot bands.; B |
| 1.93998 ± 0.00052 | LPD | Gantefor, Cox, et al., 1990 | B |
| 2.010 ± 0.010 | LPES | Ho, Ervin, et al., 1990 | Stated electron affinity is the Vertical Detachment Energy; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.7 ± 1.0 | EI | Gupta and Gingerich, 1979 | LLK |
| 9.5 ± 0.3 | EI | Stearns and Kohl, 1973 | LLK |
| 9.5 ± 0.3 | EI | Stearns and Kohl, 1973, 2 | LLK |
| 9.7 ± 0.4 | EI | Gingerich, 1971 | LLK |
| 9.7 ± 0.3 | EI | Gingerich and Finkbeiner, 1970 | RDSH |
| 9.2 ± 0.4 | EI | Gingerich, 1969 | RDSH |
References
Go To: Top, 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.
Leon, Yang, et al., 2013
Leon, I.; Yang, Z.; Wang, L.S.,
High resolution photoelectron imaging of Au-2(-),
J. Chem. Phys., 2013, 138, 18, 184304, https://doi.org/10.1063/1.4803477
. [all data]
Zheng, Li, et al., 2007
Zheng, W.; Li, X.; Eustis, S.; Grubisic, A.; Thomas, O.; de Clercq, H.; Bowen, K.,
Anion photoelectron spectroscopy of Au-(H2O)(1,2), Au-2(-)(D2O)(1-4), and AuOH-,
Chem. Phys. Lett., 2007, 444, 4-6, 232-236, https://doi.org/10.1016/j.cplett.2007.07.036
. [all data]
Zhai, Kiran, et al., 2004
Zhai, H.-J.; Kiran, B.; Wang, L.-S.,
Observation of Au2H- impurity in pure gold clusters and Implications for the Anomalous Au-Au Distance in Gold Nanowires,
J. Chem. Phys., 2004, 121, 17, 8231, https://doi.org/10.1063/1.1802491
. [all data]
Taylor, Pettiettehall, et al., 1992
Taylor, K.J.; Pettiettehall, C.L.; Cheshnovsky, O.; Smalley, R.E.,
Ultraviolet Photoelectron Spectra of Coinage Metal Clusters,
J. Chem. Phys., 1992, 96, 4, 3319, https://doi.org/10.1063/1.461927
. [all data]
Gantefor, Cox, et al., 1990
Gantefor, G.F.; Cox, D.M.; Kaldor, A.,
High Resolution Photodetachment Spectroscopy of Jet-Cooled Metal Cluster Anions - Au2- and Ag3-,
J. Chem. Phys., 1990, 93, 11, 8395, https://doi.org/10.1063/1.459272
. [all data]
Ho, Ervin, et al., 1990
Ho, J.; Ervin, K.M.; Lineberger, W.C.,
Photoelectron Spectroscopy of Metal Cluster Anions - Cun-, Agn-, and Aun-,
J. Chem. Phys., 1990, 93, 10, 6987, https://doi.org/10.1063/1.459475
. [all data]
Gupta and Gingerich, 1979
Gupta, S.K.; Gingerich, K.A.,
Knudsen effusion mass spectrometric determination of the dissociation energy of diniobium, Nb2(g), and the heat of sublimation of solid niobium,
J. Chem. Phys., 1979, 70, 5350. [all data]
Stearns and Kohl, 1973
Stearns, C.A.; Kohl, F.J.,
Mass spectrometric determination of the dissociation energies of AlC2, Al2C2, and AlAuC2,
J. Phys. Chem., 1973, 77, 136. [all data]
Stearns and Kohl, 1973, 2
Stearns, C.A.; Kohl, F.J.,
Mass spectrometric determination of the dissociation energies of gaseous Al2, AlSi, and AlSiO,
High Temp. Sci., 1973, 5, 113. [all data]
Gingerich, 1971
Gingerich, K.A.,
Gaseous metal borides. III. The dissociation energy and heat of formation of gold monoboride,
J. Chem. Phys., 1971, 54, 2646. [all data]
Gingerich and Finkbeiner, 1970
Gingerich, K.A.; Finkbeiner, H.C.,
Mass spectrometric determination of the dissociation energies of LaAu, CeAu, PrAu, and NdAu and predicted stability of gaseous monoaurides of electropositive metals,
J. Chem. Phys., 1970, 52, 2956. [all data]
Gingerich, 1969
Gingerich, K.A.,
Gaseous metal silicides. I. Dissociation energy of the molecule AuSi,
J. Chem. Phys., 1969, 50, 5426. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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