Benzonitrile, 2-nitro-
- Formula: C7H4N2O2
- Molecular weight: 148.1189
- IUPAC Standard InChIKey: SWBDKCMOLSUXRH-UHFFFAOYSA-N
- CAS Registry Number: 612-24-8
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Benzonitrile, o-nitro-; o-Cyanonitrobenzene; o-Nitrobenzonitrile; 2-Nitrobenzonitrile; 2-Nitrobenzoic acid nitrile
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Phase change data
Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), 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° | 88.1 ± 1.4 | kJ/mol | ME | Roux, Jiménez, et al., 2003 | Based on data from 297. to 311. K. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
87.9 ± 1.4 | 304. | ME | Roux, Jiménez, et al., 2003 | Based on data from 297. to 311. K. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference |
---|---|---|---|
15.72 | 382.7 | DSC | Jiménez, Roux, et al., 2002 |
Reaction thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Individual Reactions
By formula: Br- + C7H4N2O2 = (Br- • C7H4N2O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 87.4 ± 7.5 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff at 423 K, ΔSaff taken as that of mCF3-nitrobenzene..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 48.1 ± 4.2 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff at 423 K, ΔSaff taken as that of mCF3-nitrobenzene..Br-; B |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
48.1 | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Reaction thermochemistry 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-2251 |
NIST MS number | 233343 |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), 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]
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]
Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P.,
Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-,
J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014
. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References
- Symbols used in this document:
T Temperature ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy 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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