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Platinum dimer


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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
1.8980 ± 0.0080LPESHo, Polak, et al., 1993B

Ionization energy determinations

IE (eV) Method Reference Comment
8.68 ± 0.02STaylor, Lemire, et al., 1988LL
7.3 ± 2.0EIGupta, Nappi, et al., 1981LLK

Constants of diatomic molecules

Go To: Top, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through August, 1976

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for (194,195)Pt2
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A  218.4 1 0.9        A larrow X 1 11248.7
missing citation
X 0           

Notes

1In Ar matrix at 12 K; not observed in the gas phase.

References

Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ho, Polak, et al., 1993
Ho, J.; Polak, M.L.; Ervin, K.M.; Lineberger, W.C., Photoelectron Spectroscopy of Nickel Group Dimers - Ni2(-), Pd2(-), and Pt2(-), J. Chem. Phys., 1993, 99, 11, 8542, https://doi.org/10.1063/1.465577 . [all data]

Taylor, Lemire, et al., 1988
Taylor, S.; Lemire, G.W.; Hamrick, Y.M.; Fu, Z.; Morse, M.D., Resonant two-photon ionization spectroscopy of jet-cooled Pt2, J. Chem. Phys., 1988, 89, 5517. [all data]

Gupta, Nappi, et al., 1981
Gupta, S.K.; Nappi, B.M.; Gingerich, K.A., Mass spectrometric study of the stabilities of the gaseous molecules Pt2 and PtY, Inorg. Chem., 1981, 20, 966. [all data]


Notes

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