2,6-Lutidine
- Formula: C7H9N
- Molecular weight: 107.1531
- IUPAC Standard InChIKey: OISVCGZHLKNMSJ-UHFFFAOYSA-N
- CAS Registry Number: 108-48-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Pyridine, 2,6-dimethyl-; α,α'-Dimethylpyridine; α,α'-Lutidine; 2,6-Dimethylpyridine; 2,6-Dimethypyridine; α,α'-Lutidin; NSC 2155
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 14.0 | kcal/mol | N/A | Cox and Gundry, 1958 | Value computed using ΔfHliquid° value of 12.6 kj/mol from Cox and Gundry, 1958 and ΔvapH° value of 46.06 kj/mol from missing citation.; DRB |
ΔfH°gas | 13.42 ± 0.37 | kcal/mol | Cm | Andon, Cox, et al., 1957 | ALS |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C7H9N+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.86 ± 0.03 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 230.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 222.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.87 | PE | Utsunomiya, Kobayashi, et al., 1978 | LLK |
9.23 ± 0.05 | EI | Distefano, Foffani, et al., 1971 | LLK |
9.23 | EI | Distefano, Foffani, et al., 1971, 2 | LLK |
8.85 ± 0.02 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
8.90 ± 0.05 | PE | Heilbronner, Hornung, et al., 1972 | Vertical value; LLK |
Mass spectrum (electron ionization)
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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW- 652 |
NIST MS number | 227861 |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cox and Gundry, 1958
Cox, J.D.; Gundry, H.A.,
Heats of combustion. Part II. The six lutidines,
J. Chem. Soc., 1958, 1019-1022. [all data]
Andon, Cox, et al., 1957
Andon, R.J.L.; Cox, J.D.; Herington, E.F.G.; Martin, J.F.,
The second virial coefficients of pyridine and benzene, and certain of their methyl homologues,
Trans. Faraday Soc., 1957, 53, 1074. [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]
Utsunomiya, Kobayashi, et al., 1978
Utsunomiya, C.; Kobayashi, T.; Nagakura, S.,
Photoelectron angular distribution measurements for some pyridines,
Bull. Chem. Soc. Jpn., 1978, 451, 3482. [all data]
Distefano, Foffani, et al., 1971
Distefano, G.; Foffani, A.; Innorta, G.; Pignataro, S.,
Mass spectrometric study of transition metal complexes with ligands having nitrogen or sulphur as donor atom,
Adv. Mass Spectrom., 1971, 5, 696. [all data]
Distefano, Foffani, et al., 1971, 2
Distefano, G.; Foffani, A.; Innorta, G.; Pignataro, S.,
Electron impact ionization potentials of some manganese, chromium and tungsten organometallic derivatives,
Int. J. Mass Spectrom. Ion Phys., 1971, 7, 383. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Heilbronner, Hornung, et al., 1972
Heilbronner, E.; Hornung, V.; Pinkerton, F.H.; Thames, S.F.,
31. Photoelectron spectra of azabenzenes and azanaphthalenes: III. The orbital sequence in methyl- and trimethylsilyl- substituted pyridines,
Helv. Chim. Acta, 1972, 55, 289. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
IE (evaluated) Recommended ionization energy ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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