Phenol, 4-nitro-

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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
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil552.2KN/AAldrich Chemical Company Inc., 1990BS
Quantity Value Units Method Reference Comment
Tfus385. ± 10.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Δsub92.39 ± 0.43kJ/molCSabbah and Gouali, 1994Author was aware that data differs from previously reported values; ALS
Δsub92.4kJ/molCSabbah and Gouali, 1994, 2AC
Δsub99. ± 1.kJ/molMEParsons, Rochester, et al., 1971Based on data from 305. to 352. K.; AC

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
91. ± 2.343.VWolf and Weghofer, 1938ALS
91.2 ± 1.7339. to 351.N/ATrieschmann, 1935See also Wolf and Weghofer, 1938, 2 and Jones, 1960.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
30.118385.15Singh and Kumar, 1986DH
18.254387.0Poeti, Fanelli, et al., 1982DH
11.0386.4Musuc, Razus, et al., 2002AC
18.25388.2Domalski and Hearing, 1996See also Sabbah and Gouali, 1994, 2.; AC
19.300368.75Booss and Hauschildt, 1972DH
24.271387.Campbell and Campbell, 1941DH

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
78.2385.15Singh and Kumar, 1986DH
47.17387.0Poeti, Fanelli, et al., 1982DH
52.3368.75Booss and Hauschildt, 1972DH
62.7387.Campbell and Campbell, 1941DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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
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 C6H5NO3+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.1PEKobayashi and Nagakura, 1975LLK
7.38EIJohnstone and Mellon, 1973LLK
8.8 ± 0.1EIBrown, 1970RDSH
9.52EICrable and Kearns, 1962RDSH
9.38PEKobayashi and Nagakura, 1975Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H5O+11.9 ± 0.1NO2EIBrown, 1970RDSH
C6H5O2+9.9 ± 0.1NOEIBrown, 1970RDSH

De-protonation reactions

C6H4NO3- + Hydrogen cation = Phenol, 4-nitro-

By formula: C6H4NO3- + H+ = C6H5NO3

Quantity Value Units Method Reference Comment
Δr1371. ± 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
Δr1343. ± 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 + Phenol, 4-nitro- = (Bromine anion • Phenol, 4-nitro-)

By formula: Br- + C6H5NO3 = (Br- • C6H5NO3)

Quantity Value Units Method Reference Comment
Δr119. ± 7.5kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,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
Quantity Value Units Method Reference Comment
Δr78.2 ± 4.2kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
78.2423.PHPMSPaul and Kebarle, 1990gas phase; switching reaction,Thermochemical ladder(Br-)C6H5OH, Entropy change calculated or estimated; M

References

Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, Notes

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

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Sabbah and Gouali, 1994
Sabbah, R.; Gouali, M., Energetics of intra- and inter-molecular bonds in the three nitrophenols, Aust. J. Chem., 1994, 47, 1651-1660. [all data]

Sabbah and Gouali, 1994, 2
Sabbah, R.; Gouali, M., Energetics of Intra- and Inter-molecular Bonds in the Three Nitrophenols, Aust. J. Chem., 1994, 47, 9, 1651-621, https://doi.org/10.1071/CH9941651 . [all data]

Parsons, Rochester, et al., 1971
Parsons, G.H.; Rochester, C.H.; Wood, C.E.C., Effect of 4-substitution on the thermodynamics of hydration of phenol and the phenoxide anion, J. Chem. Soc., B:, 1971, 533, https://doi.org/10.1039/j29710000533 . [all data]

Wolf and Weghofer, 1938
Wolf, K.L.; Weghofer, H., Uber sublimationswarmen, Z. Phys. Chem., 1938, 39, 194-208. [all data]

Trieschmann, 1935
Trieschmann, H.G., , Ph.D. Dissertation, Inst. Fur Phys. Chem. and Electrochem. der Universitat Kiel, Germany, 1935. [all data]

Wolf and Weghofer, 1938, 2
Wolf, K.L.; Weghofer, H.Z., Z. Phys. Chem. Abt. B, 1938, 39, 194. [all data]

Jones, 1960
Jones, A.H., Sublimation Pressure Data for Organic Compounds., J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019 . [all data]

Singh and Kumar, 1986
Singh, N.B.; Kumar, P., Solidification behavior of the cinnamic acid-p-nitrophenol eutectic system, J. Chem. Eng. Data, 1986, 31, 406-408. [all data]

Poeti, Fanelli, et al., 1982
Poeti, G.; Fanelli, E.; Braghetti, M., A differential scanning calorimetric study of some phenol derivatives, J. Therm. Anal., 1982, 24(2), 273-279. [all data]

Musuc, Razus, et al., 2002
Musuc, A.M.; Razus, D.; Oancea, D., Analele Universitatii Bucuresti Chimie, 2002, 11, 2, 147. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Booss and Hauschildt, 1972
Booss, H.J.; Hauschildt, K.R., Die Schmelzenthalpie des Benzils und 4-Nitrophenols, Z. Anal. Chem., 1972, 261(1), 32. [all data]

Campbell and Campbell, 1941
Campbell, A.N.; Campbell, A.J.R., The system naphthalene-p-nitrophenol: an experimental investigation of all the variables in an equation of the freezing point curve, Can. J. Res., 1941, B19, 73-79. [all data]

Kobayashi and Nagakura, 1975
Kobayashi, T.; Nagakura, S., Photoelectron spectra of nitrophenols and nitroanisoles, J. Electron Spectrosc. Relat. Phenom., 1975, 6, 421. [all data]

Johnstone and Mellon, 1973
Johnstone, R.A.W.; Mellon, F.A., Effects of induction and resonance in the calculation of ionization potentials of substituted benzenes by perturbation molecular orbital theory, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 36. [all data]

Brown, 1970
Brown, P., Kinetic studies in mass spectrometry. IX. Competing [M-NO2] and [M-NO] reactions in substituted nitrobenzenes. Approximate activation energies from ionization and appearance potentials, Org. Mass Spectrom., 1970, 4, 533. [all data]

Crable and Kearns, 1962
Crable, G.F.; Kearns, G.L., Effect of substituent groups on the ionization potentials of benzenes, J. Phys. Chem., 1962, 66, 436. [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]


Notes

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