Benzaldehyde, 4-hydroxy-

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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:
B - John E. Bartmess
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
9.32 ± 0.02EIFoffani, Pignataro, et al., 1964RDSH

De-protonation reactions

C7H5O2- + Hydrogen cation = Benzaldehyde, 4-hydroxy-

By formula: C7H5O2- + H+ = C7H6O2

Quantity Value Units Method Reference Comment
Δr1393. ± 8.8kJ/molG+TSFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1364. ± 8.4kJ/molIMREFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B

Ion clustering 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Bromine anion + Benzaldehyde, 4-hydroxy- = (Bromine anion • Benzaldehyde, 4-hydroxy-)

By formula: Br- + C7H6O2 = (Br- • C7H6O2)

Quantity Value Units Method Reference Comment
Δr108. ± 7.5kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,M,M
Quantity Value Units Method Reference Comment
Δr96.J/mol*KN/APaul and Kebarle, 1990gas phase; switching reaction,Thermochemical ladder(Br-)C6H5OH, Entropy change calculated or estimated; M
Δr96.J/mol*KN/APaul and Kebarle, 1990gas phase; switching reaction,Thermochemical ladder(Br-)C6H5OH, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr67.4 ± 4.2kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
64.4423.PHPMSPaul and Kebarle, 1990gas phase; switching reaction,Thermochemical ladder(Br-)C6H5OH, Entropy change calculated or estimated; M
67.4423.PHPMSPaul and Kebarle, 1990gas phase; switching reaction,Thermochemical ladder(Br-)C6H5OH, Entropy change calculated or estimated; M

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

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


UV/Visible spectrum

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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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

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Source Grammaticakis, 1953
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 3310
Instrument n.i.g.
Melting point 117

References

Go To: Top, Gas phase ion energetics data, Ion clustering data, IR Spectrum, UV/Visible spectrum, Notes

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

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]

Fujio, McIver, et al., 1981
Fujio, M.; McIver, R.T., Jr.; Taft, R.W., Effects on the acidities of phenols from specific substituent-solvent interactions. Inherent substituent parameters from gas phase acidities, J. Am. Chem. Soc., 1981, 103, 4017. [all data]

Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P., Stabilities in the Gas Phase of the Hydrogen Bonded Complexes, YC6H4OH-X-, of Substituted Phenols, YC6H4OH, with the Halide Anions X-(Cl-, Br-), Can. J. Chem., 1990, 68, 11, 2070, https://doi.org/10.1139/v90-316 . [all data]

Grammaticakis, 1953
Grammaticakis, P., Contribution a l'etude de l'absorption dans l'U.-V. moyen et le visible de quelques aldehydes et cetones aromatiques ainsi que de certains de leurs derives fonctionnels, (Premier memoire), Bull. Soc. Chim. Fr., 1953, 20, 821-826. [all data]


Notes

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