Cyclopropane, 1,2-dimethyl-, trans-
- Formula: C5H10
- Molecular weight: 70.1329
- IUPAC Standard InChI: InChI=1S/C5H10/c1-4-3-5(4)2/h4-5H,3H2,1-2H3/t4-,5-/m1/s1
- IUPAC Standard InChIKey: VKJLDXGFBJBTRQ-RFZPGFLSSA-N
- CAS Registry Number: 2402-06-4
- 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: trans-1,2-Dimethylcyclopropane; (E)-1,2-Dimethylcyclopropane
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Phase change data
Go To: Top, Gas phase ion energetics data, 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 | 301.5 ± 0.9 | K | AVG | N/A | Average of 7 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 123.4 ± 0.3 | K | AVG | N/A | Average of 11 values; Individual data points |
Gas phase ion energetics data
Go To: Top, Phase change data, 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:
LL - Sharon G. Lias and Joel F. Liebman
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C5H10+ (ion structure unspecified)
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.02 ± 0.05 | EI | Holmes and Lossing, 1991 | LL |
| 9.73 ± 0.02 | EI | Natalis and Laune, 1964 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C3H6+ | 11.29 ± 0.05 | C2H4 | EI | Natalis and Laune, 1964 | RDSH |
| C4H7+ | 11.38 ± 0.04 | CH3 | EI | Natalis and Laune, 1964 | RDSH |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Holmes and Lossing, 1991
Holmes, J.L.; Lossing, F.P.,
Ionization energies of homologous organic compounds and correlation with molecular size,
Org. Mass Spectrom., 1991, 26, 537. [all data]
Natalis and Laune, 1964
Natalis, P.; Laune, J.,
Etude du comportement d'isomeres geometriques sous l'impact electronique. IV. Cyclopropane, methylcyclopropane et dimethylcyclopropanes gem. cis et trans,
Bull. Soc. Chim. Belges, 1964, 73, 944. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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