Benzylamine
- Formula: C7H9N
- Molecular weight: 107.1531
- IUPAC Standard InChIKey: WGQKYBSKWIADBV-UHFFFAOYSA-N
- CAS Registry Number: 100-46-9
- 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: Benzenemethanamine; α-Aminotoluene; ω-Aminotoluene; (Phenylmethyl)amine; Monobenzylamine; N-Benzylamine; Sumine 2005; (Aminomethyl)benzene; NSC 8046; Phenylmethanamine; 857483-23-9; 858831-93-3
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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman
View reactions leading to C7H9N+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 913.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 879.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
922.7 ± 7.8 | Wind, Papp, et al., 2005 | T = 298K; MM |
924. ± 4. | Cao and Holmes, 2000 | Authors recommend revision of Hunter and Lias, 1998 value based on their KM results, while results for other alkylamines are consistent with the Hunter and Lias, 1998 tabulated values.; MM |
Protonation entropy at 298K
Protonation entropy (J/mol*K) | Reference | Comment |
---|---|---|
-3. ± 10. | Wind, Papp, et al., 2005 | T = 298K; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.49 ± 0.06 | EI | Selim, Rabbih, et al., 1987 | LBLHLM |
8.8 | PE | Aue and Bowers, 1979 | LLK |
8.73 | PE | Bodor, Dewar, et al., 1970 | RDSH |
8.64 ± 0.05 | PI | Vilesov and Terenin, 1957 | RDSH |
9.46 | PE | Deshmukh, Dutta, et al., 1982 | Vertical value; LBLHLM |
9.10 ± 0.01 | PE | Debies and Rabalais, 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH4N+ | 10.08 ± 0.05 | C6H5 | EI | Holmes and Lossing, 1984 | LBLHLM |
C5H3+ | 17.68 ± 0.13 | NH+C2H5 | EI | Selim, Rabbih, et al., 1989 | LL |
C5H3+ | 17.23 ± 0.11 | NH2+H2+C2H2 | EI | Selim, Rabbih, et al., 1989 | LL |
C5H3+ | 16. ± 0. | NH2+C2H4 | EI | Selim, Rabbih, et al., 1989 | LL |
C6H6+ | 10.29 ± 0.05 | ? | EI | Selim, Rabbih, et al., 1992 | LL |
C6H7+ | 12.17 ± 0.06 | HCN | EI | Selim, Rabbih, et al., 1987, 2 | LBLHLM |
C7H6+ | 12.06 ± 0.10 | NH3 | EI | Selim, Rabbih, et al., 1987, 3 | LBLHLM |
C7H7+ | 11.75 ± 0.06 | NH2 | EI | Selim, Rabbih, et al., 1987, 2 | LBLHLM |
C7H7N+ | 9.35 ± 0.07 | H2 | PI | Akopyan, Vilesov, et al., 1962 | RDSH |
C7H8N+ | 9.25 ± 0.06 | H | EI | Selim, Rabbih, et al., 1987 | LBLHLM |
C7H8N+ | 9.3 ± 0.1 | H | PI | Akopyan and Vilesov, 1964 | RDSH |
C7H8N+ | 9.21 ± 0.07 | H | PI | Akopyan, Vilesov, et al., 1962 | RDSH |
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.
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]
Wind, Papp, et al., 2005
Wind, J.J.; Papp, L.; Happel, M.; Hahn, K.; Andriole, E.J.; Poutsma, J.C.,
Proton Affinity of beta-Oxalylaminoalanine (BOAA): Incorporation of Direct Entropy Correction into the Single-Reference Kinetic Method,
J. Am. Soc. Mass Spectrom., 2005, 16, 1151. [all data]
Cao and Holmes, 2000
Cao, J.; Holmes, J.L.,
The proton affinity of amine-alkanes. A test case for the kinetic method,
Int. J. Mass Spectrom., 2000, 195/196, 525. [all data]
Selim, Rabbih, et al., 1987
Selim, E.T.; Rabbih, M.A.; Fahmey, M.A.,
M and [M-1]+ ions formed for benzyl alcohol, benzyl amine and benzyl cyanide,
Org. Mass Spectrom., 1987, 22, 381. [all data]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]
Bodor, Dewar, et al., 1970
Bodor, N.; Dewar, M.J.S.; Jennings, W.B.; Worley, S.D.,
Photoelectron spectra of molecules-IV.Ionization potentials and heats of formation of some hydrazines and amines,
Tetrahedron, 1970, 26, 4109. [all data]
Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N.,
The photoionization of the vapors of certain organic compounds,
Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]
Deshmukh, Dutta, et al., 1982
Deshmukh, P.; Dutta, T.K.; Hwang, J.L.-S.; Housecroft, C.E.; Fehlner, T.P.,
Photoelectron spectroscopic measurements of the relative charge on carbyne fragments bound to polynuclear cobalt carbonyl clusters,
J. Am. Chem. Soc., 1982, 104, 1740. [all data]
Debies and Rabalais, 1974
Debies, T.P.; Rabalais, J.W.,
Photoelectron spectra of substituted benzenes. III. Bonding with Group V substituents,
Inorg. Chem., 1974, 13, 308. [all data]
Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P.,
Heats of formation of organic radicals from appearance energies,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]
Selim, Rabbih, et al., 1989
Selim, E.T.M.; Rabbih, M.A.; Fahmey Ahmad, M.A.; Shalbi, A.S.,
Energetic study of [C5H3]+ fragment ion produced from some benzyl derivatives,
Arab Gulf J. Sci. Res., 1989, 7, 53. [all data]
Selim, Rabbih, et al., 1992
Selim, E.T.M.; Rabbih, M.A.; Fahmey, M.A.; Hawash, M.F.,
Electron impact study of [C6H6]+ fragment ions produced from isomeric C7H9N precursors using the deconvoluted first differential technique and kinetic release measurements,
Int. J. Mass Spectrom. Ion Processes, 1992, 113, 133. [all data]
Selim, Rabbih, et al., 1987, 2
Selim, E.T.M.; Rabbih, M.A.; Fahmey, M.A.,
A mass spectrometric study of [C7H7]+ and [C6H7]+ fragment ions obtained from benzyl alcohol, benzyl amine and benzyl cyanide,
Egypt. J. Phys., 1987, 18, 37. [all data]
Selim, Rabbih, et al., 1987, 3
Selim, E.T.; Rabbih, M.A.; Rezk, A.M.H.; Fahmey, M.A.,
Energetics of [C7H6]+ fragment ion using electron impact technique,
Indian J. Pure Appl. Phys., 1987, 25, 451. [all data]
Akopyan, Vilesov, et al., 1962
Akopyan, M.E.; Vilesov, F.I.; Terenin, A.N.,
A mass-spectroscopic study of the spectral dependence of the efficiency of photoionization of benzene derivatives,
Dokl. Akad. Nauk SSSR 1961,140,1037 (Engl. Transl.: Soviet Phys. - Dokl., 1962, 6, 890). [all data]
Akopyan and Vilesov, 1964
Akopyan, M.E.; Vilesov, F.I.,
Excited states of positive ions and dissociative photoionization of aromatic amines,
Dokl. Akad. Nauk SSSR, 1964, 158, 1386, In original 965. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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