m-Nitroaniline
- Formula: C6H6N2O2
- Molecular weight: 138.1240
- IUPAC Standard InChI: InChI=1S/C6H6N2O2/c7-5-2-1-3-6(4-5)8(9)10/h1-4H,7H2
- IUPAC Standard InChIKey: XJCVRTZCHMZPBD-UHFFFAOYSA-N
- CAS Registry Number: 99-09-2
- 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: Benzenamine, 3-nitro-; Aniline, m-nitro-; m-Aminonitrobenzene; m-Nitroaminobenzene; m-Nitrophenylamine; Amarthol Fast Orange R Base; Azobase MNA; C.I. Azoic Diazo Component 7; C.I. 37030; Daito Orange Base R; Devol Orange R; Diazo Fast Orange R; Fast Orange Base R; Fast Orange M Base; Fast Orange MM Base; Fast Orange R Base; Fast Orange R Salt; Hiltonil Fast Orange R Base; MNA; Naphtoelan Orange R Base; Nitranilin; Orange Base Irga I; 1-Amino-3-nitrobenzene; 3-Nitroaniline; 3-Nitrobenzenamine; 3-Nitrobenzeneamine; 3-Nitrophenylamine; m-Nitraniline; 3-Aminonitrobenzene; NSC 9574
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase ion energetics data
Go To: Top, 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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C6H6N2O2+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.95 ± 0.10 | IMRE | Chowdhury, Kishi, et al., 1989 | ΔGea(423 K) = -21.0 kcal/mol, ΔS = -2 eu est; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.31 ± 0.02 | PI | Potapov, Kardash, et al., 1972 | LLK |
| 8.80 | EI | Crable and Kearns, 1962 | RDSH |
| 8.60 | PE | Khalil, Meeks, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C6H6N+ | 11.2 ± 0.1 | NO2 | EI | Brown, 1970 | RDSH |
| C6H6NO+ | 9.1 ± 0.1 | NO | EI | Brown, 1970 | RDSH |
De-protonation reactions
C6H5N2O2- + =
By formula: C6H5N2O2- + H+ = C6H6N2O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 352.3 ± 2.1 | kcal/mol | G+TS | Taft and Topsom, 1987 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 345.0 ± 2.0 | kcal/mol | IMRE | Taft and Topsom, 1987 | gas phase; B |
References
Go To: Top, 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.
Chowdhury, Kishi, et al., 1989
Chowdhury, S.; Kishi, H.; Dillow, G.W.; Kebarle, P.,
Electron Affinities of Substituted Nitrobenzenes,
Can. J. Chem., 1989, 67, 4, 603, https://doi.org/10.1139/v89-091
. [all data]
Potapov, Kardash, et al., 1972
Potapov, V.K.; Kardash, I.E.; Sorokin, V.V.; Sokolov, S.A.; Evlasheva, T.I.,
Photoionization of heteroaromatic compounds,
Khim. Vys. Energ., 1972, 6, 392. [all data]
Crable and Kearns, 1962
Crable, G.F.; Kearns, G.L.,
Effect of substituent groups on the ionization potentials of benzenes,
J. Phys. Chem., 1962, 66, 436. [all data]
Khalil, Meeks, et al., 1973
Khalil, O.S.; Meeks, J.L.; McGlynn, S.P.,
Electronic spectroscopy of highly polar aromatics. VII. Photoelectron spectra of nitroanilines,
J. Am. Chem. Soc., 1973, 95, 5876. [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]
Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D.,
The Nature and Analysis of Substituent Effects,
Prog. Phys. Org. Chem., 1987, 16, 1. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.