Azulene, 1,4-dimethyl-7-(1-methylethyl)-
- Formula: C15H18
- Molecular weight: 198.3034
- IUPAC Standard InChIKey: FWKQNCXZGNBPFD-UHFFFAOYSA-N
- CAS Registry Number: 489-84-9
- 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: Azulene, 7-isopropyl-1,4-dimethyl-; Azulen-Beris; Azulol; Azulon; Azunol; Cuteazul; Eucazulen; Guaiazulene; Gurjunazulen; Kessazulen; Purazulen; S-Guaiazulene; Silazulon; Uroazulen; Vetivazulen; 1,4-Dimethyl-7-isopropylazulene; 3,8-Dimethyl-5-(2-propyl)azulene; 7-Isopropyl-1,4-dimethylazulene; 1,4-Dimethyl-7-(1-methylethyl)azulene; Azulene, 1,4-dimethyl-7-isopropyl-; Guajazulene; Guiazulene; AZ-8; AZ-8 beris; Vaumigan; NSC 4714; 1,4-dimethyl-7-(1-methyl)-azulene (azulon)
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Condensed phase thermochemistry data
Go To: Top, Mass spectrum (electron ionization), UV/Visible spectrum, 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 |
---|---|---|---|---|---|
ΔcH°solid | -8536.2 ± 3.8 | kJ/mol | Ccb | Kovats, Gunthard, et al., 1955 | Reanalyzed by Cox and Pilcher, 1970, Original value = -8535. ± 4. kJ/mol; Corresponding ΔfHºsolid = 61.09 kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°solid | -8463.8 ± 7.5 | kJ/mol | Ccb | Perrottet, Taub, et al., 1940 | Corresponding ΔfHºsolid = -11. kJ/mol (simple calculation by NIST; no Washburn corrections) |
Mass spectrum (electron ionization)
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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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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 | Chemical Concepts |
NIST MS number | 149199 |
UV/Visible spectrum
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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 | Hagen, et al., 1968 |
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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. 15272 |
Instrument | unknown |
Melting point | 29.7-30.5 |
Gas Chromatography
Go To: Top, Condensed 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 1772. | Lazari, Skaltsa, et al., 2000 | 30. m/0.25 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; Tend: 280. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 MS | 1790. | Pripdeevech and Saansoomchai, 2013 | 30. m/0.25 mm/0.25 μm, Helium, 3. K/min; Tstart: 60. C; Tend: 230. C |
Capillary | HP-5 MS | 1772. | Jian-Yu, Zhu, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium, 40. C @ 1. min, 3. K/min, 250. C @ 3. min |
Capillary | DB-5MS | 1778. | Maia, Zoghbi, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 60. C; Tend: 240. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-1 | 1734. | Nogueira, Marcelo-Curto, et al., 2008 | 30. m/0.25 mm/0.25 μm, He; Program: 45C => 3C/min => 175C => 15C/min => 300C (10min) |
References
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kovats, Gunthard, et al., 1955
Kovats, E.; Gunthard, Hs.H.; Plattner, Pl.A.,
Thermische eigenschaften von azulenen,
Helv. Chim. Acta, 1955, 38, 1912-1919. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Perrottet, Taub, et al., 1940
Perrottet, E.; Taub, W.; Briner, E.,
Sur etats energetiques comparatifs des noyaux azulenique et naphtalenique,
Helv. Chim. Acta, 1940, 23, 1260-1268. [all data]
Hagen, et al., 1968
Hagen, R., et al.,
Helv. Chim. Acta, 1968, 51, 45. [all data]
Lazari, Skaltsa, et al., 2000
Lazari, D.M.; Skaltsa, H.D.; Constantinidis, T.,
Volatile constituents of Centaurea pelia DC., C. thessala Hausskn. subsp. drakiensis (Freyn Sint.) Georg. and C. zuccariniana DC. from Greece,
Flavour Fragr. J., 2000, 15, 1, 7-11, https://doi.org/10.1002/(SICI)1099-1026(200001/02)15:1<7::AID-FFJ860>3.0.CO;2-3
. [all data]
Pripdeevech and Saansoomchai, 2013
Pripdeevech, P.; Saansoomchai, J.,
Antibacterial activity and chemical composition of essential oil and various extracts of Fagraea fragrans Roxb. flowers,
Chiang Mai J. Sci., 2013, 40, 2, 214-223. [all data]
Jian-Yu, Zhu, et al., 2012
Jian-Yu, S.; Zhu, L.; Tian, Y.-J.,
Chemical composition and antimicrobial activities of essential oil of Matricaria songarica,
Int. J. Agriculture Biology, 2012, 14, 1, 107-110. [all data]
Maia, Zoghbi, et al., 2002
Maia, J.G.S.; Zoghbi, M.G.B.; Andrade, E.H.A.; da Silva, M.H.L.; Luz, A.I.R.; da Silva, J.D.,
Essential oils composition of Eupatorium species growing wild in the Amazon,
Biochem. Syst. Ecol., 2002, 30, 11, 1071-1077, https://doi.org/10.1016/S0305-1978(02)00059-5
. [all data]
Nogueira, Marcelo-Curto, et al., 2008
Nogueira, T.; Marcelo-Curto, M.J.; Cristina Figueiredo, A.; Barroso, J.G.; Pedro, L.G.; Rubiolo, P.; Bicchi, C.,
Chemotaxonomy of Hypericum genus from Portugal: Geographical distribution and essential oils composition of Hypericum perfoliatum, Hypericum humifusum, Hypericum linarifolium and Hypericum pulchrum,
Biochem. Syst. Ecol., 2008, 36, 1, 40-50, https://doi.org/10.1016/j.bse.2007.07.004
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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