2-Methyl-2-heptene
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChIKey: WEPNJTDVIIKRIK-UHFFFAOYSA-N
- CAS Registry Number: 627-97-4
- 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: 2-Heptene, 2-methyl-; 2-Methylhept-2-ene
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Phase change data
Go To: Top, IR Spectrum, 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 396. ± 2. | K | AVG | N/A | Average of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 150.980 | K | N/A | Anonymous, 1960 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 150.980 | K | N/A | Anonymous, 1960 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 151.000 | K | N/A | Anonymous, 1960 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 39.7 | kJ/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
41.2 | 272. | A | Stephenson and Malanowski, 1987 | Based on data from 257. to 396. K. See also Stull, 1947.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
257.1 to 395.7 | 4.54012 | 1620.23 | -38.531 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
IR Spectrum
Go To: Top, Phase change data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR 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: 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 | Chemical Concepts |
NIST MS number | 149379 |
Gas Chromatography
Go To: Top, Phase change data, IR Spectrum, 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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Petrocol DH | 30. | 800.2 | Soják, Addová, et al., 2004 | 150. m/0.25 mm/1. μm, H2 |
Capillary | Squalane | 30. | 789.6 | Soják, Addová, et al., 2004 | He; Column length: 93. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 40. | 787. | Laub and Purnell, 1988 | |
Capillary | OV-101 | 60. | 786. | Laub and Purnell, 1988 | |
Capillary | OV-101 | 80. | 786. | Laub and Purnell, 1988 | |
Capillary | DB-1 | 40. | 800. | Lubeck and Sutton, 1984 | 60. m/0.264 mm/0.25 μm, H2 |
Capillary | HP-PONA | 40. | 800. | Lubeck and Sutton, 1984 | 50. m/0.21 mm/0.5 μm, H2 |
Capillary | Squalane | 100. | 789.5 | Lulova, Leont'eva, et al., 1976 | He; Column length: 120. m; Column diameter: 0.25 mm |
Capillary | Squalane | 40. | 791. | Matukuma, 1969 | N2; Column length: 91.4 m; Column diameter: 0.25 mm |
Packed | Squalane | 30. | 789.5 | Tourres, 1967 | H2; Column length: 10. m |
Packed | Squalane | 50. | 789.5 | Tourres, 1967 | H2; Column length: 10. m |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 800. | Sojak, Kubinec, et al., 2006 | 150. m/0.25 mm/1.0 μm, 1. K/min; Tstart: 40. C; Tend: 300. C |
Capillary | OV-101 | 786. | Orav, Kailas, et al., 1999 | 50. m/0.20 mm/0.50 μm, Helium, 30. C @ 6. min, 1. K/min; Tend: 100. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 MS | 770. | Luo and Agnew, 2001 | 30. m/0.25 mm/1.0 μm, Helium; Program: not specified |
Capillary | Methyl Silicone | 796. | Zenkevich, 2000 | Program: not specified |
References
Go To: Top, Phase change data, IR Spectrum, 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.
Anonymous, 1960
Anonymous, R.,
, Natl. Bur. Stand. (U. S.), Tech. News Bull. 44, 1960. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Soják, Addová, et al., 2004
Soják, L.; Addová, G.; Kubinec, R.; Kraus, A.; Bohác, A.,
Capillary gas chromatography-mass spectrometry of all 93 acyclic octenes and their identification in fluid catalytic cracked gasoline,
J. Chromatogr. A, 2004, 1025, 2, 237-253, https://doi.org/10.1016/j.chroma.2003.10.112
. [all data]
Laub and Purnell, 1988
Laub, R.J.; Purnell, J.H.,
Specific retention volumes, retention indices, and family-plot regressions of aliphatic, alicyclic, and aromatic hydrocarbon solutes with OV-101 poly (dimethylsiloxane) stationary phase,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1988, 11, 9, 649-660, https://doi.org/10.1002/jhrc.1240110908
. [all data]
Lubeck and Sutton, 1984
Lubeck, A.J.; Sutton, D.L.,
Kovats Retention Indices of Selected Olefins on Bonded Phase Fused Silica Capillaries,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1984, 7, 9, 542-544, https://doi.org/10.1002/jhrc.1240070913
. [all data]
Lulova, Leont'eva, et al., 1976
Lulova, N.I.; Leont'eva, S.A.; Timofeeva, A.N.,
Gas-chromatographic method of determination of individual hydrocarbons in catalytic cracking gasolines
in Proceedings of All-Union Research Institute on Oil Processes. Vol.18, All-Union Research Institute on Oil Processes, Moscow, 1976, 30-53. [all data]
Matukuma, 1969
Matukuma, A.,
Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data,
Gas Chromatogr., Int. Symp. Anal. Instrum. Div Instrum Soc. Amer., 1969, 7, 55-75. [all data]
Tourres, 1967
Tourres, D.A.,
Structural analysis of industrial butene dimers by gas chromatography,
J. Gas Chromatogr., 1967, 5, 1, 35-40, https://doi.org/10.1093/chromsci/5.1.35
. [all data]
Sojak, Kubinec, et al., 2006
Sojak, L.; Kubinec, R.; Jurdakova, H.; Hajekova, E.; Bajus, M.,
GC-MS of polyethylene and polypropylene thermal cracking produxts,
Petroleum Coal, 2006, 48, 1, 1-14. [all data]
Orav, Kailas, et al., 1999
Orav, A.; Kailas, T.; Muurisepp, M.; Kann, J.,
Composition of the oil from waste tires. 1. Fraction boiling at yp to 160 0C,
Proc. Estonian Acad. Sci. Chem., 1999, 48, 1, 30-39. [all data]
Luo and Agnew, 2001
Luo, J.; Agnew, M.P.,
Gas characteristics before and after biofiltration treating odorous emissions from animal rendering processes,
Environ. Technol., 2001, 22, 9, 1091-1103, https://doi.org/10.1080/09593332208618220
. [all data]
Zenkevich, 2000
Zenkevich, I.G.,
Mutual Correlation between Gas Chromatographic Retention Indices of Unsaturated and Saturated Hydrocarbons found by Molecular Dynamics,
Z. Anal. Chem., 2000, 55, 10, 1091-1097. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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