Cyclopropane, ethyl-
- Formula: C5H10
- Molecular weight: 70.1329
- IUPAC Standard InChIKey: FOTXAJDDGPYIFU-UHFFFAOYSA-N
- CAS Registry Number: 1191-96-4
- 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. - Other names: Ethylcyclopropane
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -5.92 ± 0.19 | kcal/mol | Ccb | Good, 1971 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -805.91 ± 0.18 | kcal/mol | Ccb | Good, 1971 | Corresponding ΔfHºliquid = -5.92 kcal/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -808.8 | kcal/mol | Cm | Fierens and Nasielski, 1962 | Corresponding ΔfHºliquid = -3.0 kcal/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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 309.1 ± 0.8 | K | AVG | N/A | Average of 11 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 123.87 | K | N/A | Anonymous, 1958 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 123.88 | K | N/A | Anonymous, 1958 | Uncertainty assigned by TRC = 0.03 K; TRC |
Tfus | 123.74 | K | N/A | Van Volkenburgh, Greenlee, et al., 1949 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 123.75 | K | N/A | Anonymous, 1947 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 123.55 | K | N/A | Pomerantz, Fookson, et al., 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, 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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C5H10+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.96 ± 0.05 | EI | Holmes and Lossing, 1991 | LL |
9.50 | EI | Lossing, 1972 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C4H7+ | 10.34 | CH3 | EI | Lossing, 1972 | LLK |
References
Go To: Top, Condensed phase thermochemistry data, 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.
Good, 1971
Good, W.D.,
The enthalpies of combustion and formation of some alkyl cyclopropanes,
J. Chem. Thermodyn., 1971, 3, 539-546. [all data]
Fierens and Nasielski, 1962
Fierens, P.J.C.; Nasielski, J.,
Chaleurs de combustion de derives cyclopropaniques et pouvoir de conjugaison du groupe cyclopropyle,
Bull. Soc. Chim. Belg., 1962, 71, 187-202. [all data]
Anonymous, 1958
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 45, Ohio State Univ., 1958. [all data]
Van Volkenburgh, Greenlee, et al., 1949
Van Volkenburgh, R.; Greenlee, K.W.; Derfer, J.M.; Boord, C.E.,
The Synthesis of Some Cyclopropane Hydrocarbons From Methyl Cyclopropyl Ketone,
J. Am. Chem. Soc., 1949, 71, 172-5. [all data]
Anonymous, 1947
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 45, Ohio State Univ., 1947. [all data]
Pomerantz, Fookson, et al., 1954
Pomerantz, P.; Fookson, A.; Mears, T.W.; Rothberg, S.; Howard, F.L.,
Synth. and Phys. Prop. of Several Aliphatic and Alicyclic Hydrocarbons hydrocarbons,
J. Res. Natl. Bur. Stand. (U. S.), 1954, 52, 59-65. [all data]
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]
Lossing, 1972
Lossing, F.P.,
Free radicals by mass spectrometry. XLV. Ionization potentials and heats of formation of C3H3, C3H5, and C4H7 radicals and ions,
Can. J. Chem., 1972, 50, 3973. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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