(Z)-2,5-Dimethylhex-3-ene
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChIKey: KNCMKWVOMRUHKZ-WAYWQWQTSA-N
- CAS Registry Number: 10557-44-5
- 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. - Stereoisomers:
- Other names: 3-Hexene, 2,5-dimethyl-, (Z)-; (Z)-2,5-Dimethyl-3-hexene
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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: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -111.3 | kJ/mol | N/A | Yates and McDonald, 1973 | Value computed using ΔfHliquid° value of -151.1±1.8 kj/mol from Yates and McDonald, 1973 and ΔvapH° value of 39.8 kj/mol from alkenes correlation. |
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 |
---|---|---|---|---|---|
ΔfH°liquid | -151.1 ± 1.8 | kJ/mol | Ccb | Yates and McDonald, 1973 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -5283.7 ± 1.8 | kJ/mol | Ccb | Yates and McDonald, 1973 | Corresponding ΔfHºliquid = -151.0 kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -5273.8 ± 1.2 | kJ/mol | Ccb | Yates and McDonald, 1971 | Corresponding ΔfHºliquid = -161.0 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 as indicated in comments:
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 | 371.8 | K | N/A | Brown, Greenlee, et al., 1962 | Uncertainty assigned by TRC = 0.7 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 37.2 | kJ/mol | N/A | Reid, 1972 | AC |
Reaction 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C8H16 + H2 = C8H18
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -120.0 ± 0.08 | kJ/mol | Chyd | Turner, Jarrett, et al., 1973 | liquid phase; solvent: Acetic acid |
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
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.846 ± 0.005 | PE | Masclet, Grosjean, et al., 1973 | LLK |
IR 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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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 | Sadtler Research Labs Under US-EPA Contract |
State | gas |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Petrocol DH | 30. | 696.6 | Soják, Addová, et al., 2004 | 150. m/0.25 mm/1. μm, H2 |
Capillary | Squalane | 30. | 683.9 | Soják, Addová, et al., 2004 | He; Column length: 93. m; Column diameter: 0.25 mm |
Capillary | Squalane | 40. | 701. | Matukuma, 1969 | N2; Column length: 91.4 m; Column diameter: 0.25 mm |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, NIST Free Links, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Yates and McDonald, 1973
Yates, K.; McDonald, R.S.,
Kinetics and mechanisms of electrophilic addition. II. A thermochemical-kinetic approach to transition-state structure,
J. Org. Chem., 1973, 38, 2465-2478. [all data]
Yates and McDonald, 1971
Yates, K.; McDonald, R.S.,
A thermochemical probe into the mechanism of electrophilic addition to olefins,
J. Am. Chem. Soc., 1971, 93, 6297-6299. [all data]
Brown, Greenlee, et al., 1962
Brown, J.E.; Greenlee, K.W.; Tindall, E.M.,
Octane Numbers of Pure Hydrocarbon Blends and Their Relationaship to Precombustion Reactions,
Proc. Am. Petrol. Inst., 1962, 1962, Sect. 111 42, 515-46. [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]
Turner, Jarrett, et al., 1973
Turner, R.B.; Jarrett, A.D.; Goebel, P.; Mallon, B.J.,
Heats of hydrogenation. 9. Cyclic acetylenes and some miscellaneous olefins,
J. Am. Chem. Soc., 1973, 95, 790-792. [all data]
Masclet, Grosjean, et al., 1973
Masclet, P.; Grosjean, D.; Mouvier, G.,
Alkene ionization potentials. Part I. Quantitative determination of alkyl group structural effects,
J. Electron Spectrosc. Relat. Phenom., 1973, 2, 225. [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]
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]
Notes
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- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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