Benzaldehyde, 4-methoxy-

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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
Δfliquid-247.kJ/molCcbZavoianu, Contineanu, et al., 1986 
Quantity Value Units Method Reference Comment
Δcliquid-4047.kJ/molCcbZavoianu, Contineanu, et al., 1986Corresponding Δfliquid = -244. kJ/mol (simple calculation by NIST; no Washburn corrections)
Δcliquid-4024.2 ± 7.5kJ/molCcbManzoni-Ansidei and Storto, 1940Reanalyzed by Cox and Pilcher, 1970, Original value = -4028.9 kJ/mol; Corresponding Δfliquid = -267.2 kJ/mol (simple calculation by NIST; no Washburn corrections)

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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 C8H8O2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)881.1kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity849.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.43PEBehan, Johnstone, et al., 1976LLK
8.60 ± 0.03EIFoffani, Pignataro, et al., 1964RDSH
8.88PEGal, Geribaldi, et al., 1985Vertical value; LBLHLM
8.87PEBaker, May, et al., 1968Vertical value; RDSH

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Zavoianu, Contineanu, et al., 1986
Zavoianu, D.; Contineanu, I.; Moga-Gheorghe, S.; Marchidan, D., Structure and reactivity of nitriles. Condensation reaction of phenylacetonitrile with benzaldehydes, Rev. Chim. (Bucharest), 1986, 37, 1055-1058. [all data]

Manzoni-Ansidei and Storto, 1940
Manzoni-Ansidei, R.; Storto, T., Experimentelle beitrage zum problem der chelatringbildung. IX. Thermochemische untersuchungen an einigen methoxybenzaldehyden, Atti. R. Acad. Italia. Rend. Classe Sci. Fis. Mat. Nat., 1940, 1, 465. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [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]

Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

Foffani, Pignataro, et al., 1964
Foffani, A.; Pignataro, S.; Cantone, B.; Grasso, F., Ionization potentials and substituent effects for aromatic carbonyl compounds, Z. Physik. Chem. (Frankfurt), 1964, 42, 221. [all data]

Gal, Geribaldi, et al., 1985
Gal, J.-F.; Geribaldi, S.; Pfister-Guillouzo, G.; Morris, D.G., Basicity of the carbonyl group. Part 12. Correlations between ionization potentials and lewis basicities in aromatic carbonyl compounds, J. Chem. Soc. Perkin Trans. 2, 1985, 103. [all data]

Baker, May, et al., 1968
Baker, A.D.; May, D.P.; Turner, D.W., Molecular photoelectron spectroscopy. Part VII. The vertical ionisation potentials of benzene and some of its monosubstituted and 1,4-disubstituted derivatives, J. Chem. Soc. B, 1968, 22. [all data]


Notes

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