o-Isopropenyltoluene
- Formula: C10H12
- Molecular weight: 132.2023
- IUPAC Standard InChIKey: OGMSGZZPTQNTIK-UHFFFAOYSA-N
- CAS Registry Number: 7399-49-7
- 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: 1-Methyl-2-iso-propenylbenzene; Benzene, 1-methyl-2-(1-methylethenyl)-; o-Methyl-α-methylstyrene; o,α-Dimethylstyrene; Styrene, o,α-dimethyl-; 1-Isopropenyl-2-methylbenzene; 1-Methyl-2-(1-methylethenyl)-benzene; o-Cymenene
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Phase change data
Go To: Top, Gas phase ion energetics 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: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 445.35 | K | N/A | Anonymous, 1952 | Uncertainty assigned by TRC = 1. K |
Tboil | 442. | K | N/A | Pines, Strehlau, et al., 1950 | Uncertainty assigned by TRC = 3. K |
Tboil | 441.65 | K | N/A | Pines, Strehlau, et al., 1950, 2 | Uncertainty assigned by TRC = 2. K |
Tboil | 445.65 | K | N/A | Murray and Gallaway, 1948 | Uncertainty assigned by TRC = 2. K |
Tboil | 448.15 | K | N/A | Sabatier and Murat, 1913 | Uncertainty assigned by TRC = 3. K |
Gas phase ion energetics data
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 evaluated by: Edward P. Hunter and Sharon G. Lias
View reactions leading to C10H12+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 857.8 | kJ/mol | N/A | Hunter and Lias, 1998 | |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 828.9 | kJ/mol | N/A | Hunter and Lias, 1998 |
IR Spectrum
Go To: Top, Phase change data, Gas phase ion energetics data, 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
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, Gas phase ion energetics 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 | NIST Mass Spectrometry Data Center, 1990. |
NIST MS number | 113543 |
References
Go To: Top, Phase change data, Gas phase ion energetics 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.
Anonymous, 1952
Anonymous, R.,
, Physical Properties of Chemical Substances, Dow Chemical Co., 1952. [all data]
Pines, Strehlau, et al., 1950
Pines, H.; Strehlau, D.R.; Ipatieff, V.N.,
Hydrogen Transfer IV. Reaction of p-Isobutyltoluene and of p-s-Butyltoluene with Methylcyclohexene,
J. Am. Chem. Soc., 1950, 72, 1563. [all data]
Pines, Strehlau, et al., 1950, 2
Pines, H.; Strehlau, D.R.; Ipatieff, V.N.,
Hydrogen Transfer V. Reaction of m-Cymene and o-Cymene with Methylcyclohexane in the Presence of Hydrogen FLuoride,
J. Am. Chem. Soc., 1950, 72, 5521. [all data]
Murray and Gallaway, 1948
Murray, M.J.; Gallaway, W.S.,
Steric Inhibition of Resonance in 1-Methyl-2-isopropenylbenzene,
J. Am. Chem. Soc., 1948, 70, 3867. [all data]
Sabatier and Murat, 1913
Sabatier, P.; Murat, M.,
Preparation of Three Cymenes and Thre Menthanes,
C. R. Hebd. Seances Acad. Sci., 1913, 156, 184. [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]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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