Copper tetramer
- Formula: Cu4
- Molecular weight: 254.184
- CAS Registry Number: 65357-62-2
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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:
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.32 ± 0.10 | LPES | Ho, Ervin, et al., 1990 | EA: threshold, ≥EA(adiabatic). Vertical Detachment Energy: 1.45±0.05 eV.; B |
| 1.40 ± 0.15 | LPES | Taylor, Pettiettehall, et al., 1992 | EA set as 0.2 eV above onset to correct for unresolved hot bands.; B |
| 1.450 ± 0.020 | LPES | Leopold, Ho, et al., 1987 | EA given is Vertical Detachment Energy. Adiabatic EA est. as 0.05 eV lower; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.0 ± 0.6 | EI | Franzreb, Wucher, et al., 1990 | LL |
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.
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]
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]
Leopold, Ho, et al., 1987
Leopold, D.G.; Ho, J.; Lineberger, W.C.,
Photoelectron Spectroscopy of Mass-selected Metal Cluster Anions. I. Cun-, n=1-10,
J. Chem. Phys., 1987, 86, 4, 1715, https://doi.org/10.1063/1.452170
. [all data]
Franzreb, Wucher, et al., 1990
Franzreb, K.; Wucher, A.; Oechsner, H.,
Electron impact ionization of small silver and copper clusters,
Z. Phys. D, 1990, 17, 51. [all data]
Notes
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- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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