4-Methyl-2-pentyne

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Gas 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
44.0550.Thermodynamics Research Center, 1997p=1 bar.
62.94100.
79.64150.
94.45200.
116.61273.15
124.44298.15
125.02300.
155.67400.
182.81500.
205.86600.
225.48700.
242.37800.
257.00900.
269.691000.
280.71100.
290.21200.
298.51300.
305.71400.
312.01500.

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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tboil346.KN/AFarchan Laboratories, 1990BS
Tboil345.9KN/AMiller, Greenlee, et al., 1954Uncertainty assigned by TRC = 0.3 K; TRC
Tboil346.28KN/APomerantz, Fookson, et al., 1954Uncertainty assigned by TRC = 0.3 K; TRC
Tboil346.15KN/AAnonymous, 1950Uncertainty assigned by TRC = 0.4 K; TRC
Tboil345.4KN/AGredy, 1935Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Tfus162.78KN/APomerantz, Fookson, et al., 1954Uncertainty assigned by TRC = 0.3 K; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C6H10+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.31 ± 0.05EIWolkoff, Holmes, et al., 1980LLK
9.346 ± 0.007PECarlier, Dubois, et al., 1975LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C5H7+9.67 ± 0.05CH3EIWolkoff, Holmes, et al., 1980LLK

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 NIST Mass Spectrometry Data Center
NIST MS number 343718

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySqualane80.594.Soják, Farkas, et al., 1991107. m/0.25 mm/0.40 μm, H2

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

View large format table.

Column type Active phase I Reference Comment
CapillaryMethyl Silicone615.Zenkevich and Marinichev, 2001Program: not specified

References

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

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

Miller, Greenlee, et al., 1954
Miller, H.M.; Greenlee, K.W.; Derfer, J.M.; Boord, C.E., J. Org. Chem., 1954, 19, 1882. [all data]

Pomerantz, Fookson, et al., 1954
Pomerantz, P.; Fookson, A.; Mears, T.W.; Rothberg, S.; Howard, F.L., Synthesis and Physical Properties of Several Acetylenic Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1954, 52, 51. [all data]

Anonymous, 1950
Anonymous, R., , Am. Pet. Inst. Res. Proj. 6, Natl. Bur. Stand., 1950. [all data]

Gredy, 1935
Gredy, B., Raman effect of organic chemicals a study of isopropylacetylene, isopropylethylene and of some of their derivatives, Bull. Soc. Chim. Fr., 1935, 2, 1951. [all data]

Wolkoff, Holmes, et al., 1980
Wolkoff, P.; Holmes, J.L.; Lossing, F.P., On the formation of cyclopentenium cations from all C6H10+ molecular ion structures, Can. J. Chem., 1980, 58, 251. [all data]

Carlier, Dubois, et al., 1975
Carlier, P.; Dubois, J.E.; Masclet, P.; Mouvier, G., Spectres de photoelectrons des alcynes, J. Electron Spectrosc. Relat. Phenom., 1975, 7, 55. [all data]

Soják, Farkas, et al., 1991
Soják, L.; Farkas, P.; Ostrovský, I.; Janák, J.; Chrétien, J.R., Capillary gas chromatography of C5 - C13 branched alkynes on squalane and liquid crystal stationary phases, J. Chromatogr., 1991, 557, 241-253, https://doi.org/10.1016/S0021-9673(01)87136-3 . [all data]

Zenkevich and Marinichev, 2001
Zenkevich, I.G.; Marinichev, A.N., Comparison of Topological and Dynamics Molecular Characteristics for Precalculation of Chromatographic Retention Parameters of Organic Compounds (in Russian), Zh. Struct. Khim., 2001, 42, 5, 893-902. [all data]


Notes

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