Ethane, nitro-
- Formula: C2H5NO2
- Molecular weight: 75.0666
- IUPAC Standard InChIKey: MCSAJNNLRCFZED-UHFFFAOYSA-N
- CAS Registry Number: 79-24-3
- 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: Nitroethane; C2H5NO2; Nitroetan; UN 2842; NE; Nitroparaffin
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Gas phase ion energetics data
Go To: Top, Gas Chromatography, 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
L - Sharon G. Lias
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.9 ± 0.05 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 183.0 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 175.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.92 ± 0.01 | PE | Dewar, Shanshal, et al., 1969 | RDSH |
10.88 ± 0.05 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
11.02 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H5+ | 11.0 | NO2 | EI | Tsuda and Hamill, 1966 | RDSH |
C2H5O+ | 10.62 ± 0.07 | NO | EI | Solka and Russell, 1974 | LLK |
De-protonation reactions
C2H4NO2- + =
By formula: C2H4NO2- + H+ = C2H5NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 355.9 ± 2.2 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 357.5 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 349.5 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 351.0 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
Gas Chromatography
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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-1 | 100. | 618.58 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 110. | 619.51 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 120. | 620.51 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 20. | 616.27 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 30. | 615.97 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 40. | 615.90 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 50. | 616.07 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 60. | 616.25 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 70. | 616.67 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 80. | 617.22 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Capillary | HP-1 | 90. | 617.81 | Görgényi and Héberger, 2003 | N2; Column length: 30. m; Phase thickness: 3. μm |
Packed | C78, Branched paraffin | 130. | 567.8 | Reddy, Dutoit, et al., 1992 | Chromosorb G HP; Column length: 3.3 m |
Packed | Apolane | 130. | 572. | Dutoit, 1991 | Column length: 3.7 m |
Packed | SF-96 | 100. | 638. | Boneva and Dimov, 1979 | N2; Column length: 2. m |
Packed | SF-96 | 110. | 638. | Boneva and Dimov, 1979 | N2; Column length: 2. m |
Packed | SF-96 | 90. | 634. | Boneva and Dimov, 1979 | N2; Column length: 2. m |
Packed | Apiezon L | 100. | 592. | Brown, Chapman, et al., 1968 | N2, DCMS-treated Chromosorb W; Column length: 2.3 m |
Packed | Apiezon L | 150. | 609. | Brown, Chapman, et al., 1968 | N2, DCMS-treated Chromosorb W; Column length: 2.3 m |
Packed | DC-200 | 100. | 623. | Rohrschneider, 1966 | Column length: 4. m |
Packed | Apiezon L | 100. | 598. | Rohrschneider, 1966 | Column length: 5. m |
Packed | Apiezon L | 130. | 590. | Wehrli and Kováts, 1959 | Celite; Column length: 2.25 m |
Packed | Apiezon L | 70. | 583. | Wehrli and Kováts, 1959 | Celite; Column length: 2.25 m |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-Innowax | 100. | 1194.2 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 110. | 1196.2 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 120. | 1199.2 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 50. | 1179.4 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 60. | 1181.3 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 70. | 1183.9 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 80. | 1187.3 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Capillary | HP-Innowax | 90. | 1190.2 | Görgényi and Héberger, 2003 | Column length: 30. m; Phase thickness: 0.5 μm |
Packed | Carbowax 20M | 100. | 1168. | Rohrschneider, 1966 | Column length: 2. m |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 636.89 | Hobbs and Conde, 1992 | 30. m/0.25 mm/0.25 μm, 5. K/min; Tstart: 40. C; Tend: 300. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 590. | N/A | Program: not specified |
Capillary | SPB-1 | 618. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
Capillary | Polydimethyl siloxanes | 623. | Zenkevich and Chupalov, 1996 | Program: not specified |
Capillary | SPB-1 | 618. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Capillary | SPB-1 | 655. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1161. | Ramsey and Flanagan, 1982 | Program: not specified |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Dewar, Shanshal, et al., 1969
Dewar, M.J.S.; Shanshal, M.; Worley, S.D.,
Calculated and observed ionization potentials gf nitroalkanes and of nitrous and nitric acids and esters. Extension of the MINDO method to nitrogen-oxygen compounds,
J. Am. Chem. Soc., 1969, 91, 3590. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Tsuda and Hamill, 1966
Tsuda, S.; Hamill, W.H.,
Ionization efficiency measurements by the retarding potential difference method,
Advan. Mass Spectrom., 1966, 3, 249. [all data]
Solka and Russell, 1974
Solka, B.H.; Russell, M.E.,
Energetics of formation of some structural isomers of gaseous C2H5O+ C2H6N+ ions,
J. Phys. Chem., 1974, 78, 1268. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Görgényi and Héberger, 2003
Görgényi, M.; Héberger, K.,
Minimum in the temperature dependence of the Kováts retention indices of nitroalkanes and alkanenitriles on an apolar phase,
J. Chromatogr. A, 2003, 985, 1-2, 11-19, https://doi.org/10.1016/S0021-9673(02)01842-3
. [all data]
Reddy, Dutoit, et al., 1992
Reddy, K.S.; Dutoit, J.-Cl.; Kovats, E. sz.,
Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups,
J. Chromatogr., 1992, 609, 1-2, 229-259, https://doi.org/10.1016/0021-9673(92)80167-S
. [all data]
Dutoit, 1991
Dutoit, J.,
Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases,
J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X
. [all data]
Boneva and Dimov, 1979
Boneva, S.; Dimov, N.,
Chromatographic retention indices of C1-C4 nitroparaffins,
Zh. Anal. Khim., 1979, 34, 6, 902-905. [all data]
Brown, Chapman, et al., 1968
Brown, I.; Chapman, I.L.; Nicholson, G.J.,
Gas chromatography of polar solutes in electron acceptor stationary phases,
Aust. J. Chem., 1968, 21, 5, 1125-1141, https://doi.org/10.1071/CH9681125
. [all data]
Rohrschneider, 1966
Rohrschneider, L.,
Eine methode zur charakterisierung von gaschromatographischen trennflüssigkeiten,
J. Chromatogr., 1966, 22, 6-22, https://doi.org/10.1016/S0021-9673(01)97064-5
. [all data]
Wehrli and Kováts, 1959
Wehrli, A.; Kováts, E.,
Gas-chromatographische Charakterisierung ogranischer Verbindungen. Teil 3: Berechnung der Retentionsindices aliphatischer, alicyclischer und aromatischer Verbindungen,
Helv. Chim. Acta, 1959, 7, 7, 2709-2736, https://doi.org/10.1002/hlca.19590420745
. [all data]
Hobbs and Conde, 1992
Hobbs, J.R.; Conde, E.P.,
Gas chromatographic retention indices of explosives and nitro-compounds
in Advances in Analysis and Detection of Explosives: Proceedings of the 4th International Symposium on Analysis of Detection of Explosives, September 7-10, 1992, Jerusalem Israel, J. Yinon, ed(s)., Kluwer Academic Publishers, Netherlands, 1992, 153-164. [all data]
Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D.,
Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]
Zenkevich and Chupalov, 1996
Zenkevich, I.G.; Chupalov, A.A.,
New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments,
Zh. Org. Khim. (Rus.), 1996, 32, 5, 656-666. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J.,
Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse,
J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy 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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