Benz[a]anthracene
- Formula: C18H12
- Molecular weight: 228.2879
- IUPAC Standard InChIKey: DXBHBZVCASKNBY-UHFFFAOYSA-N
- CAS Registry Number: 56-55-3
- 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: Benzanthracene; Benzanthrene; Benzoanthracene; Benzo[a]anthracene; Benzo[b]phenanthrene; Tetraphene; 1,2-Benzanthracene; 1,2-Benzanthrene; 1,2-Benzoanthracene; 1,2-Benz[a]anthracene; 2,3-Benzophenanthrene; BA; 1,2-Benzanthrazen; 2,3-Benzphenanthrene; Rcra waste number U018; NSC 30970
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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:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to C18H12+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.45 ± 0.05 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.39 ± 0.10 | CIDC | Chen and Cooks, 1995 | B |
0.6300 ± 0.0080 | ECD | Becker and Chen, 1966 | B |
0.460008 | ECD | Wentworth and Becker, 1962 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.5 ± 0.3 | EI | Wacks, 1964 | RDSH |
7.52 | CTS | Kuroda, 1964 | RDSH |
7.53 | CTS | Briegleb, 1964 | RDSH |
7.56 | CTS | Kinoshita, 1962 | RDSH |
7.5 | CTS | Briegleb, Czekalla, et al., 1961 | RDSH |
7.45 | CTS | Birks and Stifkin, 1961 | RDSH |
7.6 | CTS | Briegleb and Czekalla, 1959 | RDSH |
7.35 | CTS | Matsen, 1956 | RDSH |
7.46 ± 0.03 | PE | Akiyama, Harvey, et al., 1981 | Vertical value; LLK |
7.41 ± 0.02 | PE | Schmidt, 1977 | Vertical value; LLK |
7.41 | PE | Clar and Schmidt, 1976 | Vertical value; LLK |
7.56 ± 0.01 | PE | Dewar and Goodman, 1972 | Vertical value; LLK |
7.42 | PE | Brogli and Heilbronner, 1972 | Vertical value; LLK |
7.47 ± 0.01 | PE | Boschi, Murrell, et al., 1972 | Vertical value; LLK |
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.
Chen and Cooks, 1995
Chen, G.D.; Cooks, R.G.,
Electron affinities of polycyclic aromatic hydrocarbons determined by the kinetic method,
J. Mass Spectrom., 1995, 30, 8, 1167, https://doi.org/10.1002/jms.1190300814
. [all data]
Becker and Chen, 1966
Becker, R.S.; Chen, E.,
Extension of Electron Affinities and Ionization Potentials of Aromatic Hydrocarbons,
J. Chem. Phys., 1966, 45, 7, 2403, https://doi.org/10.1063/1.1727954
. [all data]
Wentworth and Becker, 1962
Wentworth, W.E.; Becker, R.S.,
Potential Method for the Determination of Electron Affinities of Molecules: Application to Some Aromatic Hydrocarbons.,
J. Am. Chem. Soc., 1962, 84, 22, 4263, https://doi.org/10.1021/ja00881a014
. [all data]
Wacks, 1964
Wacks, M.E.,
Electron-impact studies of aromatic hydrocarbons. II. Naphthacene, naphthaphene, chrysene, triphenylene, and pyrene,
J. Chem. Phys., 1964, 41, 1661. [all data]
Kuroda, 1964
Kuroda, H.,
Ionization potentials of polycyclic aromatic hydrocarbons,
Nature, 1964, 201, 1214. [all data]
Briegleb, 1964
Briegleb, G.,
Electron affinity of organic molecules,
Angew. Chem. Intern. Ed., 1964, 3, 617. [all data]
Kinoshita, 1962
Kinoshita, M.,
The absorption spectra of the molecular complexes of aromatic compounds with p-bromanil,
Bull. Chem. Soc. Japan, 1962, 35, 1609. [all data]
Briegleb, Czekalla, et al., 1961
Briegleb, G.; Czekalla, J.; Reuss, G.,
Mesomeriemomente und Elektronenuberfuhrungsbanden von Elektronen-donator-akzeptor-komplexen des Chloranils und Tetracyanathylens mit aromatischen Kohlenwasserstoffen,
Z. Phys. Chem. (Neue Folge), 1961, 30, 333. [all data]
Birks and Stifkin, 1961
Birks, J.B.; Stifkin, M.A.,
π-Electronic excitation and ionization energies of condensed ring aromatic hydrocarbons,
Nature, 1961, 191, 761. [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]
Matsen, 1956
Matsen, F.A.,
Electron affinities, methyl affinities, and ionization energies of condensed ring aromatic hydrocarbons,
J. Chem. Phys., 1956, 24, 602. [all data]
Akiyama, Harvey, et al., 1981
Akiyama, I.; Harvey, R.G.; LeBreton, P.R.,
Ultraviolet photoelectron studies of methyl-substituted benz[a]anthracenes,
J. Am. Chem. Soc., 1981, 103, 6330. [all data]
Schmidt, 1977
Schmidt, W.,
Photoelectron spectra of polynuclear aromatics. V. Correlations with ultraviolet absorption spectra in the catacondensed series,
J. Chem. Phys., 1977, 66, 828. [all data]
Clar and Schmidt, 1976
Clar, E.; Schmidt, W.,
Correlations between photoelectron and phosphorescence spectra of polycyclic hydrocarbons,
Tetrahedron, 1976, 32, 2563. [all data]
Dewar and Goodman, 1972
Dewar, M.J.S.; Goodman, D.W.,
Photoelectron spectra of molecules. Part 5.--Polycyclic aromatic hydrocarbons,
J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1784. [all data]
Brogli and Heilbronner, 1972
Brogli, F.; Heilbronner, E.,
The photoelectron spectra of benzenoid hydrocarbons C18H12,
Angew. Chem. Int. Ed. Engl., 1972, 11, 538. [all data]
Boschi, Murrell, et al., 1972
Boschi, R.; Murrell, J.N.; Schmidt, W.,
Photoelectron spectra of polycyclic aromatic hydrocarbons,
Faraday Discuss. Chem. Soc., 1972, 54, 116. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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