Pyridine, 4-methyl-, 1-oxide

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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
Δfsolid-0.5 ± 2.1kJ/molCcbLebedev, Chironov, et al., 1995 
Δfsolid12.9 ± 0.9kJ/molCmAiroldi and Goncalves, 1992 
Quantity Value Units Method Reference Comment
Δcsolid-3360.9 ± 2.1kJ/molCcbLebedev, Chironov, 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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δsub85.3 ± 2.6kJ/molMERibeiro da Silva, 1998Based on data from 345. to 392. K.; AC
Δsub79.1 ± 1.3kJ/molVLebedev, Chironov, et al., 1995ALS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Reference Comment
79.1 ± 1.3316. to 341.Lebedev, Chironov, et al., 1995, 2AC

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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C6H7NO+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.17PEWeiner and Lattman, 1974Vertical value
8.12 ± 0.02PEMaier and Muller, 1974Vertical value

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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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-1264
NIST MS number 233674

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References

Go To: Top, Condensed phase thermochemistry data, Phase change 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.

Lebedev, Chironov, et al., 1995
Lebedev, V.P.; Chironov, V.V.; Kizin, A.N.; Falyahov, I.F.; Saifullin, I.Sh.; Klyuchnikov, O.R.; Orlov, Yu.D.; Lebedev, Yu.A., The energies of dissociation of the N-O bonds in pyridine 1-oxide deriveates, Russ. Chem. Bull. (Engl. Transl.), 1995, 44, 639-641. [all data]

Airoldi and Goncalves, 1992
Airoldi, C.; Goncalves, L.J., Standard molar enthalpies of formation of some crystalline amine N-oxides, Thermochim. Acta, 1992, 194, 259-266. [all data]

Ribeiro da Silva, 1998
Ribeiro da Silva, M., Enthalpies of combustion of the pyridine N-oxide derivatives: 4-methyl-, 3-cyano-, 4-cyano-, 3-hydroxy-, 2-carboxy-, 4-carboxy-, and 3-methyl-4-nitro, and of the pyridine derivatives: 2-carboxy-, and 4-carboxy-. The dissociation enthalpies of the N-O bonds, The Journal of Chemical Thermodynamics, 1998, 30, 7, 869-878, https://doi.org/10.1006/jcht.1998.0353 . [all data]

Lebedev, Chironov, et al., 1995, 2
Lebedev, V.P.; Chironov, V.V.; Kizin, A.N.; Falyakhov, I.F.; Saifullin, I.Sh.; Klyushnikov, O.R.; Orlov, Yu.D.; Lebedev, Yu.A., Dissociation energy of the N-O bond in pyridine 1-oxide derivatives, Izv. Akad. Nauk Ser. Khim., 1995, 4, 660. [all data]

Weiner and Lattman, 1974
Weiner, M.A.; Lattman, M., Photoelectron spectra of 4-substituted pyridine N-oxides, Tetrahedron Lett., 1974, 1709. [all data]

Maier and Muller, 1974
Maier, J.P.; Muller, J.-F., Ionisation energies of pyridine N-oxides determined by photoelectron spectroscopy, J. Chem. Soc. Faraday Trans. 2, 1974, 70, 1991. [all data]


Notes

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