Phenol, 2-nitro-
- Formula: C6H5NO3
- Molecular weight: 139.1088
- IUPAC Standard InChIKey: IQUPABOKLQSFBK-UHFFFAOYSA-N
- CAS Registry Number: 88-75-5
- 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: Phenol, o-nitro-; o-Hydroxynitrobenzene; o-Nitrophenol; 2-Hydroxynitrobenzene; 2-Nitrophenol; o-Nitrofenol; UN 1663
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Gas 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 |
---|---|---|---|---|---|
ΔfH°gas | -31.62 ± 0.33 | kcal/mol | Ccr | Sabbah and Gouali, 1994 | Author was aware that data differs from previously reported values |
ΔfH°gas | -30.78 ± 0.38 | kcal/mol | Ccb | Finch, Gardner, et al., 1983 |
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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 489.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 490.4 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.7 K; TRC |
Tboil | 490.4 | K | N/A | Lecat, 1943 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 318. ± 2. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 14.0 ± 0.1 | kcal/mol | GS | Heintz, Kapteina, et al., 2007 | Based on data from 319. to 346. K.; AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 17.28 ± 0.067 | kcal/mol | C | Sabbah and Gouali, 1994 | Author was aware that data differs from previously reported values; ALS |
ΔsubH° | 17.5 | kcal/mol | C | Sabbah and Gouali, 1994, 2 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
13.4 | 381. | A | Stephenson and Malanowski, 1987 | Based on data from 366. to 490. K.; AC |
13.0 | 337. | A | Stull, 1947 | Based on data from 322. to 357. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
322.4 to 487.7 | 4.86021 | 2163.437 | -42.856 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
13.1 | 282.5 | N/A | Stephenson and Malanowski, 1987 | Based on data from 273. to 292. K.; AC |
17.5 ± 0.5 | 303. | V | Wolf and Weghofer, 1938 | ALS |
17.5 ± 0.31 | 298. to 310. | N/A | Trieschmann, 1935 | See also Wolf and Weghofer, 1938, 2 and Jones, 1960.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.1697 | 318.0 | Poeti, Fanelli, et al., 1982 | DH |
4.075 | 316.3 | Musuc, Razus, et al., 2002 | AC |
4.171 | 318.2 | Acree, 1991 | See also Sabbah and Gouali, 1994, 2.; AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.11 | 318.0 | Poeti, Fanelli, et al., 1982 | DH |
Henry's Law 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference |
---|---|---|---|
69. | 4600. | X | N/A |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law 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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C6H5NO3+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.1 | PE | Kobayashi and Nagakura, 1975 | LLK |
9.29 | PE | Kobayashi and Nagakura, 1975 | Vertical value; LLK |
De-protonation reactions
C6H4NO3- + =
By formula: C6H4NO3- + H+ = C6H5NO3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 329.5 ± 2.0 | kcal/mol | IMRE | Kebarle and McMahon, 1977 | gas phase; B |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Finch, Gardner, et al., 1983
Finch, A.; Gardner, P.J.; Wu, D.,
Studies on nitrophenols. Part IV. The standard enthalpies of combustion and formation of 1,2-dihydroxybenzene, 1,2- and 1,4-nitrophenol,
Thermochim. Acta, 1983, 66, 333-342. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Lecat, 1947
Lecat, M.,
Orthobaric Azeotropes of Sulfides,
Bull. Cl. Sci., Acad. R. Belg., 1947, 33, 160-82. [all data]
Lecat, 1943
Lecat, M.,
Azeotropes of Ethyl Urethane and other Azeotropes,
C. R. Hebd. Seances Acad. Sci., 1943, 217, 273. [all data]
Heintz, Kapteina, et al., 2007
Heintz, A.; Kapteina, S.; Verevkin, S.P.,
Pairwise-Substitution Effects and Intramolecular Hydrogen Bonds in Nitrophenols and Methylnitrophenols. Thermochemical Measurements and ab Initio Calculations,
J. Phys. Chem. A, 2007, 111, 28, 6552-6562, https://doi.org/10.1021/jp0730388
. [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]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [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]
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]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [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]
Kebarle and McMahon, 1977
Kebarle, P.; McMahon, T.B.,
Intrinsic Acidities of Substituted Phenols and Benzoic Acids Determined by Gas Phase Proton Transfer Equilibria,
J. Am. Chem. Soc., 1977, 99, 7, 2222, https://doi.org/10.1021/ja00449a032
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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