4,4'-Bipyridine
- Formula: C10H8N2
- Molecular weight: 156.1839
- IUPAC Standard InChI: InChI=1S/C10H8N2/c1-5-11-6-2-9(1)10-3-7-12-8-4-10/h1-8H
- IUPAC Standard InChIKey: MWVTWFVJZLCBMC-UHFFFAOYSA-N
- CAS Registry Number: 553-26-4
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: γ,γ'-Bipyridyl; γ,γ'-Dipyridyl; 4,4-Bipyridyl; 4,4-Dipyridyl; 4,4'-Bipyridyl; 4,4'-Dipyridine; 4,4'-Dipyridyl; 4,4-Bipyridine; 4-(4-Pyridyl)pyridine; Bipyridine, 4,4'-; NSC 404423
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 70.05 ± 0.86 | kcal/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | 44.65 ± 0.53 | kcal/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1258.4 ± 0.43 | kcal/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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 as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Gas basicity at 298K
| Gas basicity (review) (kcal/mol) | Reference | Comment |
|---|---|---|
| 215. ± 3. | Shen and Brodbelt, 1998 | Triglyme; 18-Crown-6. From PT bracketing at nominal 300 K, but ion energies are undefined. Reference GBS readjusted to Hunter and Lias, 1998; MM |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.10 ± 0.02 | PE | Maier and Turner, 1972 | LLK |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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.
Ribeiro da Silva, Morais, et al., 1995
Ribeiro da Silva, M.A.V.; Morais, V.M.F.; Matos, M.A.R.; Rio, C.M.A.,
Thermochemical and theoretical studies of some bipyridines,
J. Org. Chem., 1995, 60, 5291-5294. [all data]
Shen and Brodbelt, 1998
Shen, J.; Brodbelt, J.,
Evaluation of proton-binding capabilities of polyether and pyridyl ligands,
J. Mass Spectrom., 1998, 33, 118. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Maier and Turner, 1972
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part I. Biphenyls,
Faraday Discuss. Chem. Soc., 1972, 54, 149. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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