4-Pyridinecarbonitrile, protonated
- Formula: C6H5N2+
- Molecular weight: 105.1168
- Information on this page:
- Other data available:
- Options:
Reaction thermochemistry data
Go To: Top, 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(C6H5N2+ • 2) +
= (C6H5N2+ • 3
)
By formula: (C6H5N2+ • 2H2O) + H2O = (C6H5N2+ • 3H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 8.9 | kcal/mol | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.2 | cal/mol*K | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
(C6H5N2+ • 3) +
= (C6H5N2+ • 4
)
By formula: (C6H5N2+ • 3H2O) + H2O = (C6H5N2+ • 4H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 8.2 | kcal/mol | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.7 | cal/mol*K | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
(C6H5N2+ • ) +
= (C6H5N2+ • 2
)
By formula: (C6H5N2+ • H2O) + H2O = (C6H5N2+ • 2H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 10.4 | kcal/mol | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.2 | cal/mol*K | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
C6H5N2+ + = (C6H5N2+ •
)
By formula: C6H5N2+ + H2O = (C6H5N2+ • H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16.0 | kcal/mol | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 25.7 | cal/mol*K | PHPMS | Davidson, Sunner J., et al., 1979 | gas phase |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Davidson, Sunner J., et al., 1979
Davidson, W.R.; Sunner J.; Kebarle, P.,
Hydrogen Bonding of Water to Onium Ions. Hydration of Substituted Pyridinium Ions and Related Systems,
J. Am. Chem. Soc., 1979, 101, 7, 1675, https://doi.org/10.1021/ja00501a005
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.