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Azulene, 1,4-dimethyl-7-(1-methylethyl)-


Condensed phase thermochemistry data

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltacsolid-8536.2 ± 3.8kJ/molCcbKovats, Gunthard, et al., 1955Reanalyzed by Cox and Pilcher, 1970, Original value = -8535. ± 4. kJ/mol; Corresponding «DELTA»fsolid = 61.09 kJ/mol (simple calculation by NIST; no Washburn corrections)
Deltacsolid-8463.8 ± 7.5kJ/molCcbPerrottet, Taub, et al., 1940Corresponding «DELTA»fsolid = -11. kJ/mol (simple calculation by NIST; no Washburn corrections)

Phase change data

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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: Robert L. Brown and Stephen E. Stein

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference
426.20.009Aldrich Chemical Company Inc., 1990
440.70.016Weast and Grasselli, 1989

Gas phase ion energetics data

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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 evaluated by: Edward P. Hunter and Sharon G. Lias

Quantity Value Units Method Reference Comment
Proton affinity (review)983.1kJ/molN/AHunter and Lias, 1998 
Quantity Value Units Method Reference Comment
Gas basicity950.6kJ/molN/AHunter and Lias, 1998 

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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Mass 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

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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.

Data compiled by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Hagen, et al., 1968
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

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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

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-51772.Lazari, Skaltsa, et al., 200030. m/0.25 mm/0.25 «mu»m, He, 50. C @ 5. min, 4. K/min; Tend: 280. C

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-5 MS1790.Pripdeevech and Saansoomchai, 201330. m/0.25 mm/0.25 «mu»m, Helium, 3. K/min; Tstart: 60. C; Tend: 230. C
CapillaryHP-5 MS1772.Jian-Yu, Zhu, et al., 201230. m/0.25 mm/0.25 «mu»m, Helium, 40. C @ 1. min, 3. K/min, 250. C @ 3. min
CapillaryDB-5MS1778.Maia, Zoghbi, et al., 200230. m/0.25 mm/0.25 «mu»m, He, 3. K/min; Tstart: 60. C; Tend: 240. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryDB-11734.Nogueira, Marcelo-Curto, et al., 200830. m/0.25 mm/0.25 «mu»m, He; Program: 45C => 3C/min => 175C => 15C/min => 300C (10min)

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [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

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