Pentacene
- Formula: C22H14
- Molecular weight: 278.3466
- IUPAC Standard InChIKey: SLIUAWYAILUBJU-UHFFFAOYSA-N
- CAS Registry Number: 135-48-8
- 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: Lin-Dibenzanthracene; Lin-Naphthoanthracene; Benzo[b]naphthacene; 2,3:6,7-Dibenzanthracene; 2,3,6,7-Dibenzanthracene
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Gas phase thermochemistry data
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
56.74 | 50. | Dorofeeva O.V., 1988 | Recommended values were calculated statistically mechanically using force field approximation for polycyclic aromatic hydrocarbons to estimate the needed vibrational frequencies (see also [ Dorofeeva O.V., 1986, Moiseeva N.F., 1989]). These functions are reproduced in the reference book [ Frenkel M., 1994]. |
91.38 | 100. | ||
132.71 | 150. | ||
180.30 | 200. | ||
255.93 | 273.15 | ||
282.0 ± 3.5 | 298.15 | ||
283.86 | 300. | ||
381.26 | 400. | ||
462.47 | 500. | ||
527.35 | 600. | ||
579.09 | 700. | ||
620.87 | 800. | ||
655.10 | 900. | ||
683.48 | 1000. | ||
707.25 | 1100. | ||
727.30 | 1200. | ||
744.33 | 1300. | ||
758.88 | 1400. | ||
771.38 | 1500. |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Gas Chromatography, 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-IW-3109 |
NIST MS number | 234338 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry 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.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | 5 % Phenyl methyl siloxane | 486.81 | Skrbic and Onjia, 2006 | 2. K/min; Tstart: 50. C; Tend: 250. C |
Capillary | SE-52 | 486.81 | Boenke and Ballschmiter, 1987 | Hydrogen, 3. K/min; Column length: 12. m; Tstart: 120. C; Tend: 285. C |
Capillary | SE-52 | 486.81 | Lee, Vassilaros, et al., 1979 | 12. m/0.3 mm/0.34 μm, He, 2. K/min; Tstart: 50. C; Tend: 250. C |
Lee's RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5MS | 483.8 | Aracil, Font, et al., 2005 | Column length: 60. m; Column diameter: 0.25 mm; Program: not specified |
Capillary | Ultra-1 | 486.8 | Sremac, Skrbic, et al., 2005 | 50. m/0.32 mm/0.50 μm, Nitrogen; Program: 40-100 0C 3-15 0C/min -> 290 0C |
Capillary | SE-52 | 486.81 | Shlyakhov, 1984 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Dorofeeva O.V., 1988
Dorofeeva O.V.,
Thermodynamic Properties of Polycyclic Aromatic Hydrocarbons in the Gaseous Phase. Institute for High Temperatures, USSR Academy of Sciences, Preprint No.1-238 (in Russian), Moscow, 1988. [all data]
Dorofeeva O.V., 1986
Dorofeeva O.V.,
On calculation of thermodynamic properties of polycyclic aromatic hydrocarbons,
Thermochim. Acta, 1986, 102, 59-66. [all data]
Moiseeva N.F., 1989
Moiseeva N.F.,
Development of Benson group additivity method for estimation of ideal gas thermodynamic properties of polycyclic aromatic hydrocarbons,
Thermochim. Acta, 1989, 153, 77-85. [all data]
Frenkel M., 1994
Frenkel M.,
Thermodynamics of Organic Compounds in the Gas State, Vol. I, II, Thermodynamics Research Center, College Station, Texas, 1994, 1994. [all data]
Skrbic and Onjia, 2006
Skrbic, B.; Onjia, A.,
Prediction of Lee Retention Indices of Polycyclic Aromatic Hydrocarbons by Artificial Neural Networks,
J. Chromatorg. A, 2006, 1108, 2, 279-284, https://doi.org/10.1016/j.chroma.2006.01.080
. [all data]
Boenke and Ballschmiter, 1987
Boenke, A.; Ballschmiter, K.,
Fused quinones as retention index marker in high resolution gas chromatography with electron-capture detection (HRGC/ECD) of oxidized aromatic compounds,
Fresenius J. Anal. Chem., 1987, 327, 1, 44-45, https://doi.org/10.1007/BF00474554
. [all data]
Lee, Vassilaros, et al., 1979
Lee, M.L.; Vassilaros, D.L.; White, C.M.; Novotny, M.,
Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons,
Anal. Chem., 1979, 51, 6, 768-773, https://doi.org/10.1021/ac50042a043
. [all data]
Aracil, Font, et al., 2005
Aracil, I.; Font, R.; Conesa, J.A.,
Semivolatile and volatile compounds from the pyrolysis and combustion of polyvinyl chloride,
J. Anal. Appl. Pyrolysis, 2005, 74, 1-2, 465-478, https://doi.org/10.1016/j.jaap.2004.09.008
. [all data]
Sremac, Skrbic, et al., 2005
Sremac, S.; Skrbic, B.; Onjia, A.,
Artificial neural network prediction of quantitative structure-retention relationships of polycyclic aromatic hydrocarbons in gas chromatography,
J. Serb. Chem. Soc., 2005, 70, 11, 1291-1300, https://doi.org/10.2298/JSC0511291S
. [all data]
Shlyakhov, 1984
Shlyakhov, A.F.,
Gas chromatography in organic geochemistry, Nedra, Moscow, 1984, 221. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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