Benzenamine, N-ethyl-
- Formula: C8H11N
- Molecular weight: 121.1796
- IUPAC Standard InChIKey: OJGMBLNIHDZDGS-UHFFFAOYSA-N
- CAS Registry Number: 103-69-5
- 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: Aniline, N-ethyl-; Anilinoethane; Ethylaniline; Ethylphenylamine; N-Ethyl-N-phenylamine; N-Ethylaminobenzene; N-Ethylaniline; N-Ethylbenzenamine; Aethylanilin; UN 2272; NSC 8736; N-EthylaniIine
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- 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.
Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 479. ± 1. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 209.65 | K | N/A | Timmermans, 1914 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.9 ± 0.1 | kcal/mol | N/A | Verevkin, 1997 | Based on data from 279. to 318. K.; AC |
ΔvapH° | 12.5 | kcal/mol | V | Vriens and Hill, 1952 | ALS |
ΔvapH° | 12.5 | kcal/mol | N/A | Vriens and Hill, 1952 | DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.5 | 326. | A | Stephenson and Malanowski, 1987 | Based on data from 311. to 477. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
323. to 479.9 | 5.63704 | 2809.017 | 20.856 | Nelson and Wales, 1925 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Phase change 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
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 221.0 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 213.4 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.56 | CTS | Farrell and Newton, 1965 | RDSH |
7.5 | CTS | Briegleb and Czekalla, 1959 | RDSH |
7.67 ± 0.06 | PE | Rozeboom, Houk, et al., 1982 | Vertical value; LBLHLM |
De-protonation reactions
C8H10N- + =
By formula: C8H10N- + H+ = C8H11N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 364.1 ± 2.1 | kcal/mol | G+TS | Taft, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 356.8 ± 2.0 | kcal/mol | IMRE | Taft, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
References
Go To: Top, Phase change 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.
Timmermans, 1914
Timmermans, J.,
Freezing temperature of organic compounds. II.,
Bull. Soc. Chim. Belg., 1914, 27, 334. [all data]
Verevkin, 1997
Verevkin, Sergey P.,
Thermochemistry of amines: experimental standard molar enthalpies of formation of some aliphatic and aromatic amines,
The Journal of Chemical Thermodynamics, 1997, 29, 8, 891-899, https://doi.org/10.1006/jcht.1997.0212
. [all data]
Vriens and Hill, 1952
Vriens, G.N.; Hill, A.G.,
Equilibria of several reactions of aromatic amines,
Ind. Eng. Chem., 1952, 44, 2732-27. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Nelson and Wales, 1925
Nelson, O.A.; Wales, H.,
Vapor Pressures and Boiling Points of Mono- and Dimthylanilines and Mono- and Diethylanilines,
J. Am. Chem. Soc., 1925, 47, 3, 867-872, https://doi.org/10.1021/ja01680a040
. [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]
Farrell and Newton, 1965
Farrell, P.G.; Newton, J.,
Ionization potentials of aromatic amines,
J. Phys. Chem., 1965, 69, 3506. [all data]
Briegleb and Czekalla, 1959
Briegleb, G.; Czekalla, J.,
Die Bestimmung von lonisierungsenergien aus den Spektren von Elektronenubergangskomplexen,
Z.Elektrochem., 1959, 63, 6. [all data]
Rozeboom, Houk, et al., 1982
Rozeboom, M.D.; Houk, K.N.; Searles, S.; Seyedrezai, S.E.,
Photoelectron spectroscopy of N-aryl cyclic amines. Variable conformations and relationships to gas- and solution-phase basicities,
J. Am. Chem. Soc., 1982, 104, 3448. [all data]
Taft, 1987
Taft, R.W.,
The Nature and Analysis of Substitutent Electronic Effects,
Personal communication. See also Prog. Phys. Org. Chem., 1987, 16, 1. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization 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.