Benzoic acid, 3-nitro-
- Formula: C7H5NO4
- Molecular weight: 167.1189
- IUPAC Standard InChIKey: AFPHTEQTJZKQAQ-UHFFFAOYSA-N
- CAS Registry Number: 121-92-6
- 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: Benzoic acid, m-nitro-; m-Nitrobenzoic acid; 3-Nitrobenzoic acid; m-Nitrobenzenecarboxylic acid; Metanitrobenzoic acid
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics 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:
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 |
---|---|---|---|---|---|
ΔfH°solid | -98.9 ± 0.1 | kcal/mol | Ccb | Lebedeva, Ryadnenko, et al., 1971 | Hfusion=4.6±0.3, see Lebedeva, Rjadnenko, et al., 1969; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -730.2 ± 0.1 | kcal/mol | Ccb | Lebedeva, Ryadnenko, et al., 1971 | Hfusion=4.6±0.3, see Lebedeva, Rjadnenko, et al., 1969; ALS |
ΔcH°solid | -729.742 | kcal/mol | Ccb | Verkade, 1926 | ALS |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
48.21 | 323. | Satoh and Sogabe, 1941 | T = 0 to 100 C. Mean value.; DH |
41.40 | 298. | Andrews, Lynn, et al., 1926 | T = 22 to 225 C.; DH |
43.00 | 297.9 | Andrews, 1926 | T = 110 to 344 K. Value is unsmoothed experimental datum.; DH |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 414.15 | K | N/A | Beringer, Brierley, et al., 1953 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 414.15 | K | N/A | Beringer, Brierley, et al., 1953 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 414.3 | K | N/A | Andrews, Lynn, et al., 1926, 2 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 26.29 ± 0.1 | kcal/mol | ME | Ribeiro da Silva, 1999 | AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
25.62 ± 0.1 | 354. | ME | Ribeiro da Silva, 1999 | Based on data from 347. to 361. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
5.1147 | 413. | Rai and Mandal, 1990 | Temperature from graph.; DH |
4.620 | 414.3 | Domalski and Hearing, 1996 | AC |
4.6200 | 414.3 | Andrews, Lynn, et al., 1926 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.3 | 413. | Rai and Mandal, 1990 | Temperature; DH |
11.2 | 414.3 | Andrews, Lynn, et al., 1926 | DH |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, Phase change 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
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.3 ± 0.2 | EI | Benoit, 1973 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H4NO3+ | 13.0 ± 0.2 | OH | EI | Benoit, 1973 | LLK |
De-protonation reactions
C7H4NO4- + =
By formula: C7H4NO4- + H+ = C7H5NO4
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 329.0 ± 2.1 | kcal/mol | G+TS | Taft, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 329.1 ± 2.1 | kcal/mol | G+TS | Kebarle and McMahon, 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 322.0 ± 2.0 | kcal/mol | IMRE | Taft, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 322.1 ± 2.0 | kcal/mol | IMRE | Kebarle and McMahon, 1977 | gas phase; B |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
Lebedeva, Ryadnenko, et al., 1971
Lebedeva, N.D.; Ryadnenko, V.L.; Kuznetsova, I.N.,
Heats of combustion and enthalpies of formation of certain aromatic nitro-derivatives,
Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 549. [all data]
Lebedeva, Rjadnenko, et al., 1969
Lebedeva, N.D.; Rjadnenko, B.L.; Gutner, N.M.,
Heats of formation of some N-containing organic compounds,
Int. Conf. Calorim. Therm. (Warsaw, Poland), 1969, 1-8. [all data]
Verkade, 1926
Verkade, P.E.,
Verbrandingswarmten van plaatsings-isomere benzol-derivaten en de theorie der geinduceerde alterneeren de polatiteit,
Verslag Akad. Wetenschappen Amsterdam, 1926, 35, 492-504. [all data]
Satoh and Sogabe, 1941
Satoh, S.; Sogabe, T.,
The heat capacities of some organic compounds containing nitrogen and the atomic heat of nitrogen. (1), Sci.,
Pap. Inst. Phys. Chem. Res. (Tokyo), 1941, 38, 197-203. [all data]
Andrews, Lynn, et al., 1926
Andrews, D.H.; Lynn, G.; Johnston, J.,
The heat capacities and heat of crystallization of some isomeric aromatic compounds,
J. Am. Chem. Soc., 1926, 48, 1274-1287. [all data]
Andrews, 1926
Andrews, D.H.,
The specific heats of some isomers of the type ortho, meta and para C6H4XY from 110 to 340K,
J. Am. Chem. Soc., 1926, 48, 1287-1298. [all data]
Beringer, Brierley, et al., 1953
Beringer, F.M.; Brierley, A.; Drexler, M.; Gindler, E.M.; Lumpkin, C.C.,
Diaryliodonium Salts II. The Phenylation of Organic and Inorganic Bases,
J. Am. Chem. Soc., 1953, 75, 2708. [all data]
Andrews, Lynn, et al., 1926, 2
Andrews, D.H.; Lynn, G.; Johnston, J.,
The Heat Capacities and Heat of Crystallization of Some Isomeric Aromatic Compounds,
J. Am. Chem. Soc., 1926, 48, 1274. [all data]
Ribeiro da Silva, 1999
Ribeiro da Silva, M.,
Enthalpies of combustion, vapour pressures, and enthalpies of sublimation of three methoxy-nitrobenzoic acids. Vapour pressures and enthalpies of sublimation of the three nitrobenzoic acids,
The Journal of Chemical Thermodynamics, 1999, 31, 11, 1429-1441, https://doi.org/10.1006/jcht.1999.0507
. [all data]
Rai and Mandal, 1990
Rai, U.S.; Mandal, K.D.,
Chemistry of organic eutectics: p-phenylenediamine-m-nitrobenzoic acid system involving the 1:2 addition compound,
Bull. Chem. Soc. Jpn., 1990, 63(5), 1496-1502. [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]
Benoit, 1973
Benoit, F.,
Substituent effects in mass spectrometry. III. Substituent effects in the dissociation of the molecular ions of para and meta subtituted benzoic acids,
Org. Mass Spectrom., 1973, 7, 295. [all data]
Taft, 1987
Taft, R.W.,
The Nature and Analysis of Substitutent Electronic Effects,
Personal communication. See also Prog. Phys. Org. Chem., 1987, 16, 1. [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, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,solid Constant pressure heat capacity of solid Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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