cyclopentoxide anion
- Formula: C5H9O-
- Molecular weight: 85.1249
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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: John E. Bartmess
Electron affinity of neutral species
| EAneutral (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.50 ± 0.10 | LPD | Alconcel and Continetti, 2002 | derived acidity seems ca. 10 kcal/mol too weak, and EA likewise |
Protonation reactions
C5H9O- + =
By formula: C5H9O- + H+ = C5H10O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1602. ± 19. | kJ/mol | D-EA | Alconcel and Continetti, 2002 | gas phase; derived acidity seems ca. 10 kcal/mol too weak, and EA likewise |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1535. ± 4.6 | kJ/mol | N/A | Garver, Yang, et al., 2011 | gas phase |
| ΔrG° | 1569. ± 20. | kJ/mol | H-TS | Alconcel and Continetti, 2002 | gas phase; derived acidity seems ca. 10 kcal/mol too weak, and EA likewise |
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.
Alconcel and Continetti, 2002
Alconcel, L.S.; Continetti, R.E.,
Dissociation dynamics and stability of cyclopentoxy and cyclopentoxide,
Chem. Phys. Lett., 2002, 366, 5-6, 642-649, https://doi.org/10.1016/S0009-2614(02)01633-0
. [all data]
Garver, Yang, et al., 2011
Garver, J.M.; Yang, Z.B.; Kato, S.; Wren, S.W.; Vogelhuber, K.M.; Lineberger, W.C.; Bierbaum, V.M.,
Gas Phase Reactions of 1,3,5-Triazine: Proton Transfer, Hydride Transfer, and Anionic sigma-Adduct Formation,
J. Am. Soc. Mass Spectrom., 2011, 22, 7, 1260-1272, https://doi.org/10.1007/s13361-011-0133-9
. [all data]
Notes
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- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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