Water dimer
- Formula: H4O2
- Molecular weight: 36.0306
- CAS Registry Number: 25655-83-8
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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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference |
|---|---|---|
| ≤11.21 ± 0.09 | PI | Ng, Trevor, et al., 1977 |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| H3O+ | 11.73 ± 0.03 | OH | PI | Ng, Trevor, et al., 1977 |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ng, Trevor, et al., 1977
Ng, C.Y.; Trevor, D.J.; Tiedemann, P.W.; Ceyer, S.T.; Kronebusch, P.L.; Mahan, B.H.; Lee, Y.T.,
Photoionization of dimeric polyatomic molecules: proton affinities of H2O and HF,
J. Chem. Phys., 1977, 67, 4235. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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