Methylacrylonitrile
- Formula: C4H5N
- Molecular weight: 67.0892
- IUPAC Standard InChI: InChI=1S/C4H5N/c1-4(2)3-5/h1H2,2H3
- IUPAC Standard InChIKey: GYCMBHHDWRMZGG-UHFFFAOYSA-N
- CAS Registry Number: 126-98-7
- 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: 2-Propenenitrile, 2-methyl-; Methacrylonitrile; α-Methacrylonitrile; α-Methylacrylonitrile; Isopropene cyanide; Isopropenylnitrile; 2-Cyano-1-propene; 2-Cyanopropene; 2-Methyl-2-propenenitrile; 2-Methylacrylonitrile; 2-Methylpropenenitrile; CH2C(CH3)CN; 2-Cyanopropene-1; USAF ST-40; Rcra waste number U152; 1-Methyl-1-cyanoethylene; Propenenitrile, 2-methyl; NSC 24145
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Reaction thermochemistry data
Go To: Top, 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: John E. Bartmess
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
C4H4N- + =
By formula: C4H4N- + H+ = C4H5N
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 370.7 ± 2.1 | kcal/mol | G+TS | Bartmess and Burnham, 1984 | gas phase; value altered from reference due to change in acidity scale |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 364.1 ± 2.0 | kcal/mol | IMRE | Bartmess and Burnham, 1984 | gas phase; value altered from reference due to change in acidity scale |
(CAS Reg. No. 42117-14-6 • 4294967295) +
= CAS Reg. No. 42117-14-6
By formula: (CAS Reg. No. 42117-14-6 • 4294967295C4H5N) + C4H5N = CAS Reg. No. 42117-14-6
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 50.7 ± 2.5 | kcal/mol | N/A | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
IR Spectrum
Go To: Top, Reaction thermochemistry data, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- GAS (30 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH II) FROM HARD COPY; 2 cm-1 resolution
- LIQUID (NEAT) $$ FRESHLY DISTILLED; PERKIN-ELMER 521 (GRATING); DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% CCl4 FOR 5000-1330, 10% CS2 FOR 1330-625 CM-1); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Chromatography
Go To: Top, Reaction thermochemistry 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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | BPX-5 | 30. | 611. | Aflalaye, Sternberg, et al., 1995 | 12. m/0.15 mm/0.25 μm, H2 |
| Capillary | BPX-5 | 30. | 614. | Aflalaye, Sternberg, et al., 1995 | 12. m/0.15 mm/0.25 μm, H2 |
| Capillary | CP Sil 5 CB | 20. | 574.9 | Do and Raulin, 1992 | 25. m/0.15 mm/2. μm, H2 |
| Capillary | PoraPLOT Q | 100. | 560. | Do and Raulin, 1989 | 10. m/0.32 mm/10. μm, H2 |
| Capillary | PoraPLOT Q | 160. | 560. | Do and Raulin, 1989 | 10. m/0.32 mm/10. μm, H2 |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Methyl Silicone | 575. | Zenkevich, 1999 | Program: not specified |
| Capillary | Polydimethyl siloxanes | 575. | Zenkevich, 1997 | Program: not specified |
References
Go To: Top, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Bartmess and Burnham, 1984
Bartmess, J.E.; Burnham, R.,
Effect of central substituents on the gas phase acidities of propenes,
J. Org. Chem., 1984, 49, 1382. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Aflalaye, Sternberg, et al., 1995
Aflalaye, A.; Sternberg, R.; Raulin, F.; Vidal-Madjar, C.,
Gas chromatography of Titan's atmosphere. VI. Analysis of low-molecular-mass hydrocarbons and nitriles with BPX5 capillary columns,
J. Chromatogr. A, 1995, 708, 2, 283-291, https://doi.org/10.1016/0021-9673(95)00410-O
. [all data]
Do and Raulin, 1992
Do, L.; Raulin, F.,
Gas chromatography of Titan's atmosphere. III. Analysis of low-molecular-weight hydrocarbons and nitriles with a CP-Sil-5 CB WCOT capillary column,
J. Chromatogr., 1992, 591, 1-2, 297-301, https://doi.org/10.1016/0021-9673(92)80247-R
. [all data]
Do and Raulin, 1989
Do, L.; Raulin, F.,
Gas chromatography of Titan's atmosphere. I. Analysis of low-molecular-weight hydrocarbons and nitriles with a PoraPLOT Q porous polymer coated open-tubular capillary column,
J. Chromatogr., 1989, 481, 45-54, https://doi.org/10.1016/S0021-9673(01)96751-2
. [all data]
Zenkevich, 1999
Zenkevich, I.G.,
New Application of the Retention Index Concept in Gas and High Performance Liquid Chromatography,
Fresenius' J. Anal. Chem., 1999, 365, 4, 305-309, https://doi.org/10.1007/s002160051491
. [all data]
Zenkevich, 1997
Zenkevich, I.G.,
Influence of the Variations of Dynamics Molecular Parameterts on the Additivity of Chromatigraphic Retention Indices of Products of Organic Reactions Relative to Initial Reagents,
Dokl. Akad. Nauk (Rus.), 1997, 353, 5, 625-627. [all data]
Notes
Go To: Top, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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