9,10[1',2']-Benzenoanthracene, 9,10-dihydro-
- Formula: C20H14
- Molecular weight: 254.3252
- IUPAC Standard InChIKey: NGDCLPXRKSWRPY-UHFFFAOYSA-N
- CAS Registry Number: 477-75-8
- 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: Triptycene; 9,10-o-Benzenoanthracene, 9,10-dihydro-; Tribenzobicyclo[2.2.2]octatriene; Tryptycene; Anthracene, 9,10-dihydro-9,10-O-benzeno-; 9,10-o-benzeno-9,10-dihydroanthracene
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 322. ± 13. | kJ/mol | Ccb | Rodgers, Westrum, et al., 1973 | ALS |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
283.47 | 298.15 | Bencivenni L., 1979 | GT |
355.64 | 370. | ||
365.01 | 380. | ||
374.18 | 390. | ||
383.17 | 400. | ||
391.96 | 410. | ||
400.53 | 420. | ||
409.24 | 430. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, 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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.8 | PE | Martin, Mayer, et al., 1983 | LBLHLM |
7.8 | PE | Haselbach, Neuhaus, et al., 1982 | LBLHLM |
7.89 | PE | Martin, Mayer, et al., 1983 | Vertical value; LBLHLM |
7.9 | PE | Haselbach, Neuhaus, et al., 1982 | Vertical value; LBLHLM |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, 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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-8569 |
NIST MS number | 229295 |
UV/Visible spectrum
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Theilacker and Hannover, 1966 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 19665 |
Instrument | Zeiss PMQ II |
Melting point | 253 |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rodgers, Westrum, et al., 1973
Rodgers, D.L.; Westrum, E.F., Jr.; Andrews, J.T.S.,
The enthalpies of combustion and formation of [2.2]-paracyclophane and triptycene,
J. Chem. Thermodyn., 1973, 5, 733-739. [all data]
Bencivenni L., 1979
Bencivenni L.,
Vibrational spectrum and thermodynamic functions of gaseous triptycene,
J. Mol. Struct., 1979, 53, 25-29. [all data]
Martin, Mayer, et al., 1983
Martin, H.-D.; Mayer, B.; Gleiter, R.; Schafer, W.; Vogtle, F.,
Photoelektronenspektroskopische untersuchung transanularer π-,σ- und n-wechselwirkungen in bruckenkopfsubstituierten triptycenen,
Chem. Ber., 1983, 116, 2546. [all data]
Haselbach, Neuhaus, et al., 1982
Haselbach, E.; Neuhaus, L.; Johnson, R.P.; Houk, K.N.; Paddon-Row, M.N.,
.PI.-Orbital interactions in mobius-type molecules as studied by photoelectron spectroscopy,
Helv. Chim. Acta, 1982, 65, 1743. [all data]
Theilacker and Hannover, 1966
Theilacker, W.; Hannover, T.H.,
UV atlas of organic compounds, 1966, 1, D3/2. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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