Benzofuran
- Formula: C8H6O
- Molecular weight: 118.1326
- IUPAC Standard InChIKey: IANQTJSKSUMEQM-UHFFFAOYSA-N
- CAS Registry Number: 271-89-6
- 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: Benzofurfuran; Benzo[b]furan; Coumarone; 1-Oxindene; 2,3-Benzofuran; NCI-C56166; Cumarone
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 3.3 ± 0.2 | kcal/mol | Ccb | Steele and Chirico, 1990 |
Gas phase ion energetics data
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 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
View reactions leading to C8H6O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.36 ± 0.05 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.8 | EI | Tang, McGowan, et al., 1979 | LLK |
8.37 ± 0.015 | PE | Gusten, Klasinc, et al., 1976 | LLK |
8.85 ± 0.05 | EI | Thorstad and Undheim, 1974 | LLK |
8.42 | PE | Dewar, Harget, et al., 1970 | RDSH |
8.29 ± 0.05 | PE | Eland, 1969 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H6+ | 12.52 | CO | EI | Occolowitz and White, 1968 | RDSH |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-1 | 60. | 969. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 60. | 969. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 976. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | OV-101 | 140. | 1005.8 | Gerasimenko, Kirilenko, et al., 1981 | N2; Column length: 50. m; Column diameter: 0.3 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SPB-5 | 1007. | Engel and Ratel, 2007 | 60. m/0.32 mm/1. μm, 40. C @ 2. min, 3. K/min, 230. C @ 10. min |
Capillary | DB-5 | 1006.0 | Xu, van Stee, et al., 2003 | 30. m/0.25 mm/1. μm, He, 2.5 K/min; Tstart: 50. C; Tend: 200. C |
Capillary | DB-5 | 996. | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5MS | 1015. | Varlet V., Knockaert C., et al., 2006 | 30. m/0.32 mm/0.5 μm, He; Program: 70C(1min) => 3C/min => 80C(1min) => 5C/min => 150C => 10C/min => 280C (4min) |
Capillary | HP-1 | 986. | Sing, Smadja, et al., 1992 | 50. m/0.32 mm/1.05 μm, He; Program: 20C(0.5min) => 60C => 4C/min => 250C |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-WAX 57CB | 1486. | Salter L.J., Mottram D.S., et al., 1988 | 60. C @ 5. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 200. C |
Capillary | CP-WAX 57CB | 1488. | Whitfield, Mottram, et al., 1988 | He, 60. C @ 5. min, 4. K/min, 200. C @ 10. min; Column length: 50. m; Column diameter: 0.32 mm |
Capillary | CP-WAX 57CB | 1489. | Whitfield, Mottram, et al., 1988 | He, 60. C @ 5. min, 4. K/min, 200. C @ 10. min; Column length: 50. m; Column diameter: 0.32 mm |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1521. | Sing, Smadja, et al., 1992 | 60. m/0.25 mm/0.25 μm, He; Program: 20C(0.5min) => 60C => 4C/min => 250C |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Polydimethyl siloxane | 110. | 992. | Ferrand, 1962 |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | ZB-5 | 1000. | Harrison and Priest, 2009 | 30. m/0.25 mm/0.25 μm, Helium, 40. C @ 1. min, 6. K/min, 280. C @ 9. min |
Capillary | SPB-5 | 1006. | Poligné, Collignan, et al., 2001 | 60. m/0.32 mm/1. μm, He, 3. K/min; Tstart: 40. C; Tend: 200. C |
Capillary | DB-1 | 968. | Lu, Yu, et al., 1997 | 60. m/0.32 mm/1. μm, He, 40. C @ 2. min, 2. K/min, 280. C @ 40. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane with 5 % Ph groups | 1003. | Robinson, Adams, et al., 2012 | Program: not specified |
Capillary | Polydimethyl siloxane with 5 % Ph groups | 1007. | Robinson, Adams, et al., 2012 | Program: not specified |
Capillary | DB-5 | 988. | Yu and Zhang, 2010 | 30. m/0.25 mm/0.25 μm; Program: 40 0C (5 min) 5 0C/min -> 260 0C 15 0C/min -> 280 0C (1 min) |
Capillary | HP-5 | 995. | Zhao, Li, et al., 2008 | 30. m/0.25 mm/0.25 μm; Program: 40 0C (2 min) 5 0C/min -> 80 0C 7 oC/min -> 160 0C 9 0C/min -> 200 0C 20 0C/min -> 280 0C (10 min) |
Capillary | HP-5 | 1005. | Zhao, Li, et al., 2008 | 30. m/0.25 mm/0.25 μm; Program: not specified |
Capillary | Methyl phenyl siloxane (not specified) | 1007. | Poligne, Collignan, et al., 2002 | Program: not specified |
Capillary | DB-5 | 1005. | Mateo and Zumalacárregui, 1996 | 50. m/0.32 mm/0.25 μm, He; Program: 40C (10min) => 3C/min => 95C => 10C/min => 270C (10min) |
Capillary | Polydimethyl siloxane, unknown content of Ph-groups | 991. | Geldon, 1989 | Program: not specified |
Capillary | Polydimethyl siloxane, unknown content of Ph-groups | 996. | Geldon, 1989 | Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BP-20 | 1496. | Pontes, Marques, et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50C(1min) => 2.5C/min => 100C => 2C/min => 180C => 15C/min => 220C |
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 153.2 | Wang, Hou, et al., 2007 | 30. m/0.30 mm/0.25 μm, Helium, 50. C @ 5. min, 5. K/min, 200. C @ 15. min |
Capillary | HP-5 | 153.8 | Shao, Wang, et al., 2006 | 30. m/0.3 mm/0.25 μm, He, 50. C @ 5. min, 5. K/min, 200. C @ 15. min |
Capillary | DB-5 | 173.42 | Williams and Horne, 1995 | He, 60. C @ 2. min, 5. K/min; Column length: 25. m; Column diameter: 0.3 mm; Tend: 270. C |
Capillary | DB-5 | 160.51 | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Lee's RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5MS | 156.7 | Aracil, Font, et al., 2005 | Column length: 60. m; Column diameter: 0.25 mm; Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele and Chirico, 1990
Steele, W.V.; Chirico, R.D.,
Thermodynamics and the hydrodeoxygenation of 2,3-Benzofuran,
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Tang, McGowan, et al., 1979
Tang, S.-Y.; McGowan, J.C.; Singh, M.; Galatsis, P.; Ellis, B.E.; Boyd, R.K.; Brown, S.A.,
Mass spectrometry of some furanocoumarins,
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Gusten, H.; Klasinc, L.; Ruscic, B.,
Photoelectron spectroscopy of J. Heterocycl. Chem.. Indene analogs,
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Thorstad and Undheim, 1974
Thorstad, O.; Undheim, K.,
Mass spectrometry of onium compounds. XXIV. Ionisation potential in structure analysis of pyridodiazo-oxides,
Chem. Scr., 1974, 6, 222. [all data]
Dewar, Harget, et al., 1970
Dewar, M.J.S.; Harget, A.J.; Trinajstic, N.; Worley, S.D.,
Ground states of conjugated molecules-XXI.Benzofurans and benzopyrroles,
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Eland, 1969
Eland, J.H.D.,
Photoelectron spectra of conjugated hydrocarbons and heteromolecules,
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Occolowitz and White, 1968
Occolowitz, J.L.; White, G.L.,
Energetic considerations in the assignment of some fragment ion structures,
Australian J. Chem., 1968, 21, 997. [all data]
Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J.,
Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions,
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Gerasimenko, Kirilenko, et al., 1981
Gerasimenko, V.A.; Kirilenko, A.V.; Nabivach, V.M.,
Capillary gas chromatography of aromatic compounds found in coal tar fractions,
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Engel and Ratel, 2007
Engel, E.; Ratel, J.,
Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication,
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Xu, van Stee, et al., 2003
Xu, X.; van Stee, L.L.P.; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J.; Brinkman, U.A.Th.; Lelieveld, J.,
Comprehensive two-dimensional gas chromatography (GC×GC) measurements of volatile organic compounds in the atmosphere,
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Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E.,
Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest,
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Varlet V., Knockaert C., et al., 2006
Varlet V.; Knockaert C.; Prost C.; Serot T.,
Comparison of odor-active volatile compounds of fresh and smoked salmon,
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Sing, Smadja, et al., 1992
Sing, A.S.C.; Smadja, J.; Brevard, H.; Maignial, L.; Chaintreau, A.; Marion, J.-P.,
Volatile constituents of faham (Jumellea fragrans (Thou.) Schltr.),
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Salter L.J., Mottram D.S., et al., 1988
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Volatile compounds produces in Maillard reactions involving glycine, ribose and phospholid,
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Whitfield, Mottram, et al., 1988
Whitfield, F.B.; Mottram, D.S.; Brock, S.; Puckey, D.J.; Salter, L.J.,
Effect of Phospholipid on the Formation of Volatile Heterocyclic Compounds in Heated Aqueous Solutions of Amino Acids and Ribose,
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Ferrand, 1962
Ferrand, R.,
Gas phase chromatography using retention indices for the analysis of tars and their hydrogenation products,
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Harrison and Priest, 2009
Harrison, B.M.; Priest, F.G.,
Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth,
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Poligné, Collignan, et al., 2001
Poligné, I.; Collignan, A.; Trystram, G.,
Characterization of traditional processing of pork meat into boucané,
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Lu, Yu, et al., 1997
Lu, G.; Yu, T.-H.; Ho, C.-T.,
Generation of flavor compounds by the reaction of 2-deoxyglucose with selected amino acids,
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Robinson, Adams, et al., 2012
Robinson, A.L.; Adams, D.O.; Boss, P.K.; Heymann, H.; Solomon, P.S.; Trengove, R.D.,
Influence of geographic origine on the sensory characteristics and wine composition of Vitus viniferas cv. Cabernet Sauvignon wines from Australia (Supplemental data),
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Yu and Zhang, 2010
Yu, A.-N.; Zhang, A.-D.,
The effect of pH on the total formation of aroma compounds produced by hearting a model system containing L-ascorbic acid with L-threonine/L-serine,
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Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G.,
EXtraction, preparation and identification of volatile compounds in Changyu XO brandy,
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Volatile compounds in chorizo and their changes during ripening,
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Pontes, M.; Marques, J.C.; Camara, J.S.,
Screening of volatile composition from Portuguese multifloral honeys using headspace solid-phase microextraction-gas chromatography-quadrupole mass spectrometry,
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Williams and Horne, 1995
Williams, P.T.; Horne, P.A.,
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Aracil, Font, et al., 2005
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Semivolatile and volatile compounds from the pyrolysis and combustion of polyvinyl chloride,
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Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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