4,4'-Bipyridine
- Formula: C10H8N2
- Molecular weight: 156.1839
- 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, Phase change 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 | 293.1 ± 3.6 | kJ/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 |
Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 186.8 ± 2.2 | kJ/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -5265.2 ± 1.8 | kJ/mol | Ccb | Ribeiro da Silva, Morais, et al., 1995 |
Phase change 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 578.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 578. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 71.1 ± 2.6 | kJ/mol | CGC | Lipkind and Chickos, 2009 | See also Lipkind, Hanshaw, et al., 2009.; AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 106.3 ± 2.8 | kJ/mol | C | Ribeiro da Silva, Morais, et al., 1995 | ALS |
ΔsubH° | 106.3 | kJ/mol | N/A | Ribeiro da Silva, Morais, et al., 1995 | DRB |
ΔsubH° | 106.3 ± 2.8 | kJ/mol | C | Ribeiro da Silva, Morais, et al., 1995 | AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
16.1 | 377.5 | DSC | Lipkind, Hanshaw, et al., 2009 | AC |
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 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) (kJ/mol) | Reference | Comment |
---|---|---|
900. ± 10. | 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, Phase change 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]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Lipkind and Chickos, 2009
Lipkind, D.; Chickos, J.S.,
, Abstract from 38th Great Lakes Regional Meeting of the American Chemical Society, May 13-16, Chicago, IL, 2009, GLRM-275. [all data]
Lipkind, Hanshaw, et al., 2009
Lipkind, Dmitri; Hanshaw, William; Chickos, James S.,
Hypothetical Thermodynamic Properties. Subcooled Vaporization Enthalpies and Vapor Pressures of Polyaromatic Heterocycles and Related Compounds,
J. Chem. Eng. Data, 2009, 54, 10, 2930-2943, https://doi.org/10.1021/je900034d
. [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, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point 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 ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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