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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Reaction thermochemistry 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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
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 |
CAS Reg. No. 34533-65-8 + 2 = C6H15N3O6-
By formula: CAS Reg. No. 34533-65-8 + 2C2H5NO2 = C6H15N3O6-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.60 ± 0.20 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 6.30 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
+ = C2H5N2O4-
By formula: NO2- + C2H5NO2 = C2H5N2O4-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.80 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 8.90 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C2H5N2O4- + 2 = C4H10N3O6-
By formula: C2H5N2O4- + 2C2H5NO2 = C4H10N3O6-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.90 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 6.80 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C4H10N3O6- + 3 = C6H15N4O8-
By formula: C4H10N3O6- + 3C2H5NO2 = C6H15N4O8-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.80 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.00 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C6H15N4O8- + 4 = C8H20N5O10-
By formula: C6H15N4O8- + 4C2H5NO2 = C8H20N5O10-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.00 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 2.70 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C6H15N3O6- + 3 = C8H20N4O8-
By formula: C6H15N3O6- + 3C2H5NO2 = C8H20N4O8-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.60 ± 0.30 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.70 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C8H20N4O8- + 4 = C10H25N5O10-
By formula: C8H20N4O8- + 4C2H5NO2 = C10H25N5O10-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.90 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 2.10 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C4H10N2O6- + 2 = C6H15N3O8-
By formula: C4H10N2O6- + 2C2H5NO2 = C6H15N3O8-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.70 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.40 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C6H15N3O8- + 3 = C8H20N4O10-
By formula: C6H15N3O8- + 3C2H5NO2 = C8H20N4O10-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.30 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 2.40 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C8H20N4O10- + 4 = C10H25N5O12-
By formula: C8H20N4O10- + 4C2H5NO2 = C10H25N5O12-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.50 ± 0.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 0.70 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C4H8N2O4- + 2 = C6H13N3O6-
By formula: C4H8N2O4- + 2C2H5NO2 = C6H13N3O6-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.20 ± 0.80 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 5.70 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
C4H9N2O4- + 2 = C6H14N3O6-
By formula: C4H9N2O4- + 2C2H5NO2 = C6H14N3O6-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.40 ± 0.80 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 6.20 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
By formula: C2H3NO2- + C2H5NO2 = C4H8N2O4-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.70 ± 0.80 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 8.50 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
By formula: C2H4NO2- + C2H5NO2 = C4H9N2O4-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.20 ± 0.80 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 9.00 | kcal/mol | TDAs | Wincel, 2004 | gas phase; B |
By formula: C2H6NO2+ + C2H5NO2 = (C2H6NO2+ • C2H5NO2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 31. | kcal/mol | PHPMS | Meot-Ner, Hunter, et al., 1979 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 33. | cal/mol*K | PHPMS | Meot-Ner, Hunter, et al., 1979 | gas phase; M |
Gas phase ion energetics data
Go To: Top, 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 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 |
References
Go To: Top, Reaction thermochemistry 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.
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]
Wincel, 2004
Wincel, H.,
Gas-phase clustering reactions of NO2-, C2H3NO2-, C2H4NO2-C2H5NO2- and C2H5NO4- with C2H5NO2,
Int. J. Mass Spectrom., 2004, 232, 2, 185-194, https://doi.org/10.1016/j.ijms.2004.01.003
. [all data]
Meot-Ner, Hunter, et al., 1979
Meot-Ner, (Mautner); Hunter, E.P.; Field, F.H.,
Ion Thermochemistry of Low Volatility Compounds in the Gas Phase. I. Intrinsic Basicities of Alpha - Amino Acids,
J. Am. Chem. Soc., 1979, 101, 3, 686, https://doi.org/10.1021/ja00497a034
. [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]
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]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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 ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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