Benzene, nitroso-
- Formula: C6H5NO
- Molecular weight: 107.1100
- IUPAC Standard InChIKey: NLRKCXQQSUWLCH-UHFFFAOYSA-N
- CAS Registry Number: 586-96-9
- 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: Nitrosobenzene
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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 | 48.1 ± 1.0 | kcal/mol | Kin | Choo, Golden, et al., 1975 |
Reaction 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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: Br- + C6H5NO = (Br- • C6H5NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.7 ± 1.8 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 5.2 ± 1.0 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B |
By formula: C12H10N2O2 = 2C6H5NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.2 ± 0.29 | kcal/mol | Eqk | Orrell, Stephenson, et al., 1989 | liquid phase; solvent: CDCl3; NMR; ALS |
ΔrH° | 10.2 ± 0.29 | kcal/mol | Eqk | Orrell, Sik, et al., 1987 | liquid phase; solvent: CDCl3; NMR; ALS |
By formula: C12H10N2O2 = 2C6H5NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.2 ± 0.41 | kcal/mol | Eqk | Orrell, Stephenson, et al., 1989 | liquid phase; solvent: CDCl3; NMR; ALS |
ΔrH° | 13.2 ± 0.41 | kcal/mol | Eqk | Orrell, Sik, et al., 1987 | liquid phase; solvent: CDCl3; NMR; ALS |
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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 204.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 196.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.0 | PE | Egdell, Green, et al., 1975 | LLK |
8.09 | PE | Rabalais and Colton, 1973 | LLK |
8.9 | PE | Rao, 1975 | Vertical value; LLK |
8.9 ± 0.1 | PE | Egdell, Green, et al., 1975, 2 | Vertical value; LLK |
8.87 | PE | Baker, May, et al., 1968 | Vertical value; RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5+ | 11.0 ± 0.1 | ? | EI | Carmichael, Gowenlock, et al., 1972 | LLK |
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 by: John E. Bartmess
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
By formula: Br- + C6H5NO = (Br- • C6H5NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.7 ± 1.8 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br- |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 5.2 ± 1.0 | kcal/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br- |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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.
Choo, Golden, et al., 1975
Choo, K.Y.; Golden, D.M.; Benson, S.W.,
Very-low-pressure pyrolysis of nitroso- and pentafluoronitrosobenzene C-NO bond dissociation energies,
Int. J. Chem. Kinet., 1975, 7, 713-724. [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]
Orrell, Stephenson, et al., 1989
Orrell, K.G.; Stephenson, D.; Rault, T.,
NMR study of the monomer-dimer equilibria of dimethylnitrosobenzenes in solution. Identification of mixed azodioxy dimeric species,
Magn. Reson. Chem., 1989, 27, 368-376. [all data]
Orrell, Sik, et al., 1987
Orrell, K.G.; Sik, V.; Stephenson, D.,
Study of the monomer-dimer equilibrium of nitrosobenzene using multinuclear one- and two-dimensional NMR techniques,
Magn. Reson. Chem., 1987, 25, 1007-1011. [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]
Egdell, Green, et al., 1975
Egdell, R.; Green, J.C.; Rao, C.N.R.,
Photoelectron spectra of substituted benzenes,
Chem. Phys. Lett., 1975, 33, 600. [all data]
Rabalais and Colton, 1973
Rabalais, J.W.; Colton, R.J.,
Electronic interaction between the phenyl group and its unsaturated substituents,
J. Electron Spectrosc. Relat. Phenom., 1973, 1, 83. [all data]
Rao, 1975
Rao, C.N.R.,
Lone-pair ionization bands of chromophores in the photoelectron spectra of organic molecules,
Indian J. Chem., 1975, 13, 950. [all data]
Egdell, Green, et al., 1975, 2
Egdell, R.; Green, J.C.; Rao, C.N.R.; Gowenlock, B.G.; Pfab, J.,
He(I) photoelectron studies of C-nitroso compounds,
J. Chem. Soc. Faraday Trans. 2, 1975, 988. [all data]
Baker, May, et al., 1968
Baker, A.D.; May, D.P.; Turner, D.W.,
Molecular photoelectron spectroscopy. Part VII. The vertical ionisation potentials of benzene and some of its monosubstituted and 1,4-disubstituted derivatives,
J. Chem. Soc. B, 1968, 22. [all data]
Carmichael, Gowenlock, et al., 1972
Carmichael, P.J.; Gowenlock, B.G.; Johnson, C.A.F.,
Carbon-nitrogen bond dissociation energy values in C-nitrosocompounds,
Int. J. Chem. Kinet., 1972, 4, 339. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
AE Appearance energy ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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