tBuCH(Me)O anion
- Formula: C6H13O-
- Molecular weight: 101.1674
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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 |
---|---|---|---|
1.9817 ± 0.0043 | LPD | Mihalick, Gatev, et al., 1996 | Derived BDE: 103.3±2.8 kcal/mol |
2.02 ± 0.13 | D-EA | Bartmess, Scott, et al., 1979 | value altered from reference due to change in acidity scale |
Protonation reactions
By formula: C6H13O- + H+ = C6H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 371.9 ± 2.0 | kcal/mol | D-EA | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 103.3±2.8 kcal/mol |
ΔrH° | 371.4 ± 2.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy. |
ΔrH° | 371.1 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.1 ± 2.0 | kcal/mol | IMRE | Clifford, Wenthold, et al., 1998 | gas phase |
ΔrG° | 365.3 ± 2.1 | kcal/mol | H-TS | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 103.3±2.8 kcal/mol |
ΔrG° | 364.8 ± 2.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy. |
ΔrG° | 364.5 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Ion clustering 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: C6H13O- + C5H12O = (C6H13O- • C5H12O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28.4 ± 2.9 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 19.7 ± 2.0 | kcal/mol | IMRE | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale |
By formula: C6H13O- + C6H14O = (C6H13O- • C6H14O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28.9 ± 2.9 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 19.8 ± 2.0 | kcal/mol | IMRE | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale |
References
Go To: Top, Gas phase ion energetics data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mihalick, Gatev, et al., 1996
Mihalick, J.E.; Gatev, G.G.; Brauman, J.I.,
Electron Photodetachment Spectroscopy of Solvated Anions: RO.HF- or ROH.F-?,
J. Am. Chem. Soc., 1996, 118, 49, 12424, https://doi.org/10.1021/ja954202k
. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G.,
The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols,
Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W
. [all data]
Clifford, Wenthold, et al., 1998
Clifford, E.P.; Wenthold, P.G.; Gareyev, R.; Lineberger, W.C.; DePuy, C.H.; Bierbaum, V.M.; Ellison, G.B.,
Photoelectron spectroscopy, gas phase acidity, and thermochemistry of tert-butyl hydroperoxide: Mechanisms for the rearrangement of peroxyl radicals,
J. Chem. Phys., 1998, 109, 23, 10293-10310, https://doi.org/10.1063/1.477725
. [all data]
Caldwell, Rozeboom, et al., 1984
Caldwell, G.; Rozeboom, M.D.; Kiplinger, J.P.; Bartmess, J.E.,
Anion-alcohol hydrogen bond strengths in the gas phase,
J. Am. Chem. Soc., 1984, 106, 4660. [all data]
Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P.,
Thermodynamics of the Association Reactions OH- - H2O = HOHOH- and CH3O- - CH3OH = CH3OHOCH3- in the Gas Phase,
J. Phys. Chem., 1990, 94, 12, 5184, https://doi.org/10.1021/j100375a076
. [all data]
Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W.,
Relative acidities of water and methanol, and the stabilities of the dimer adducts,
J. Phys. Chem., 1986, 90, 6687. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Ion clustering data, References
- 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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