Benzonitrile, 3-nitro-
- Formula: C7H4N2O2
- Molecular weight: 148.1189
- IUPAC Standard InChIKey: RUSAWEHOGCWOPG-UHFFFAOYSA-N
- CAS Registry Number: 619-24-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Benzonitrile, m-nitro-; m-Cyanonitrobenzene; m-Nitrobenzonitrile; 3-Cyanonitrobenzene; 3-Nitrobenzonitrile
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Phase change data
Go To: Top, 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 by: William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 22.2 ± 0.07 | kcal/mol | ME | Roux, Jiménez, et al., 2003 | Based on data from 306. to 324. K. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.0 ± 0.07 | 316. | ME | Ribeiro da Silva, Santos, et al., 2003 | Based on data from 306. to 324. K. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
---|---|---|---|
4.897 | 389.7 | DSC | Jiménez, Roux, et al., 2002 |
Gas phase ion energetics data
Go To: Top, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 186.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 179.4 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.57 ± 0.10 | TDEq | Chowdhury, Heinis, et al., 1986 | ΔGea(423 K) = -34.8 kcal/mol; ΔSea = -3.2 eu.; B |
1.574 ± 0.048 | IMRE | Fukuda and McIver, 1985 | ΔGea(355 K) = -35.2 kcal/mol; ΔSea =-3.2, est. from data in Chowdhury, Heinis, et al., 1986; B |
<1.770 ± 0.050 | PD | Mock and Grimsrud, 1989 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.57 ± 0.04 | EI | Buchs, 1970 | RDSH |
10.3 ± 0.1 | EI | Brown, 1970 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H4N+ | 12.3 ± 0.1 | NO2 | EI | Brown, 1970 | RDSH |
C7H4NO+ | 10.5 ± 0.1 | NO | EI | Brown, 1970 | RDSH |
References
Go To: Top, 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.
Roux, Jiménez, et al., 2003
Roux, Maria Victoria; Jiménez, Pilar; Dávalos, Juan Z.; Temprado, Manuel; Liebman, Joel F.,
Destabilization in the isomeric nitrobenzonitriles: an experimental thermochemical study,
The Journal of Chemical Thermodynamics, 2003, 35, 5, 803-811, https://doi.org/10.1016/S0021-9614(03)00017-X
. [all data]
Ribeiro da Silva, Santos, et al., 2003
Ribeiro da Silva, Maria D.M.C.; Santos, Luis M.N.B.F.; Silva, Ana L.R.; Fernandes, Óscar; Acree, W.E.,
Energetics of 6-methoxyquinoline and 6-methoxyquinoline N-oxide: the dissociation enthalpy of the (N--O) bond,
The Journal of Chemical Thermodynamics, 2003, 35, 7, 1093-1100, https://doi.org/10.1016/S0021-9614(03)00052-1
. [all data]
Jiménez, Roux, et al., 2002
Jiménez, Pilar; Roux, Maria Victoria; Dávalos, Juán Z.; Temprado, Manuel,
Heat capacities and enthalpies of transitions of three nitrobenzonitriles,
Thermochimica Acta, 2002, 394, 1-2, 25-29, https://doi.org/10.1016/S0040-6031(02)00234-4
. [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]
Chowdhury, Heinis, et al., 1986
Chowdhury, S.; Heinis, T.; Grimsrud, E.P.; Kebarle, P.,
Entropy Changes and Electron Affinities from Gas-Phase Electron Transfer Equilibria: A- + B = A + B-,
J. Phys. Chem., 1986, 90, 12, 2747, https://doi.org/10.1021/j100403a037
. [all data]
Fukuda and McIver, 1985
Fukuda, E.K.; McIver, R.T., Jr.,
Relative electron affinities of substituted benzophenones, nitrobenzenes, and quinones. [Anchored to EA(SO2) from 74CEL/BEN],
J. Am. Chem. Soc., 1985, 107, 2291. [all data]
Mock and Grimsrud, 1989
Mock, R.S.; Grimsrud, E.P.,
Gas-Phase Electron Photodetachment Spectroscopy of the Molecular Anions of Nitroaromatic Hydrocarbons at Atmospheric Pressure,
J. Am. Chem. Soc., 1989, 111, 8, 2861, https://doi.org/10.1021/ja00190a020
. [all data]
Buchs, 1970
Buchs, A.,
Etude par spectrometrie de masse de l'ionisation de benzonitriles, de phenylacetonitriles et de N,N-dimethylanilines substitues,
Helv. Chim. Acta, 1970, 53, 2026. [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]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity ΔfusH Enthalpy of fusion 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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