1-Pentene, 4-methyl-
- Formula: C6H12
- Molecular weight: 84.1595
- IUPAC Standard InChIKey: WSSSPWUEQFSQQG-UHFFFAOYSA-N
- CAS Registry Number: 691-37-2
- 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: 4-Methyl-1-pentene; (CH3)2CHCH2CH=CH2; 4-Methylpentene-(1); Isobutylethene; 4-methylpent-1-ene
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Phase change data
Go To: Top, 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 327.0 ± 0.3 | K | AVG | N/A | Average of 21 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 130. ± 30. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 495. | K | N/A | Steele, Chirico, et al., 1997 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 32.90 | bar | N/A | Steele, Chirico, et al., 1997 | Uncertainty assigned by TRC = 1.50 bar; derived from fit of obs. vapor pressure; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.83 | mol/l | N/A | Steele, Chirico, et al., 1997 | Uncertainty assigned by TRC = 0.12 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 28.8 ± 0.2 | kJ/mol | V | Steele, Chirico, et al., 1997, 2 | ALS |
ΔvapH° | 28.6 ± 0.2 | kJ/mol | EB | Steele, Chirico, et al., 1997, 3 | Based on data from 310. to 360. K.; AC |
ΔvapH° | 28.7 | kJ/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 28.7 | kJ/mol | V | Camin and Rossini, 1956 | ALS |
ΔvapH° | 28.7 | kJ/mol | N/A | Pennington, Scott, et al., 1956 | Based on data from 287. to 328. K.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
27.4 ± 0.3 | 320. | EB | Steele, Chirico, et al., 1997, 3 | Based on data from 310. to 360. K.; AC |
26.2 ± 0.4 | 340. | EB | Steele, Chirico, et al., 1997, 3 | Based on data from 310. to 360. K.; AC |
24.9 ± 0.5 | 360. | EB | Steele, Chirico, et al., 1997, 3 | Based on data from 310. to 360. K.; AC |
30.1 | 280. | A | Stephenson and Malanowski, 1987 | Based on data from 265. to 333. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.93 | 118.9 | Lebedev, Smirnova, et al., 1994 | AC |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
- SOLUTION (10% CCl4 FOR 3800-1330, 10% CS2 FOR 1330-450 CM-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3800-1300, 10% IN CS2 FOR 1300-650, AND 10% IN CCl4 FOR 650-250 CM-1) VERSUS SOLVENT; PERKIN-ELMER 521 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR 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
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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 | Japan AIST/NIMC Database- Spectrum MS-NW-1328 |
NIST MS number | 227589 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele, Chirico, et al., 1997
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A.,
Thermodynamic Properties and Ideal-Gas Enthalpies of FOrmation for 2-Aminoisobutyric Acid (2-Methylalanine), Acetic Acid, (Z)-5-Ethylidene-2- norbornene, Mesityl Oxide (4-Methyl-3-pentene-2-one), 4-M,
J. Chem. Eng. Data, 1997, 42, 1053-66. [all data]
Steele, Chirico, et al., 1997, 2
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A.,
Thermodynamic properties and ideal-gas enthalpies of formation for 2-aminoisobutyric acid (2-methylalanine), acetic acid, (4-methyl-3-penten-2-one), 4-methylpent-1-ene, 2,2'-bis(phenylthio)propane, and glycidyl phenyl ether (1,2-epoxy-3-phenoxypropane),
J. Chem. Eng. Data, 1997, 42, 1052-1066. [all data]
Steele, Chirico, et al., 1997, 3
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A.,
Thermodynamic Properties and Ideal-Gas Enthalpies of Formation for 2-Aminoisobutyric Acid (2-Methylalanine), Acetic Acid, ( Z )-5-Ethylidene-2-norbornene, Mesityl Oxide (4-Methyl-3-penten-2-one), 4-Methylpent-1-ene, 2,2'-Bis(phenylthio)propane, and Glycidyl Phenyl Ether (1,2-Epoxy-3-phenoxypropane),
J. Chem. Eng. Data, 1997, 42, 6, 1053-1066, https://doi.org/10.1021/je970099y
. [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]
Camin and Rossini, 1956
Camin, D.L.; Rossini, F.D.,
Physical properties of the 17 isomeric hexenes of the API research series,
J. Phys. Chem., 1956, 60, 1446. [all data]
Pennington, Scott, et al., 1956
Pennington, R.E.; Scott, D.W.; Finke, H.L.; McCullough, J.P.; Messerly, J.F.; Hossenlopp, I.A.; Waddington, G.,
The chemical thermodynamic properties and rotational tautomerism of 1-propanethiol,
J. Am. Chem. Soc., 1956, 78, 3266-3272. [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]
Lebedev, Smirnova, et al., 1994
Lebedev, B.V.; Smirnova, N.N.; Vasil'ev, V.G.; Kiparisova, E.G.; Kleiner, V.I.,
Thermodynamic characteristics of 4-methylpentene-1, poly(4-methylpentene-1), and 4-methylpentene-1 polymerization,
Vysokomol. Soed. A, 1994, 36, 9, 1413. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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