Cyclopropane
- Formula: C3H6
- Molecular weight: 42.0797
- IUPAC Standard InChIKey: LVZWSLJZHVFIQJ-UHFFFAOYSA-N
- CAS Registry Number: 75-19-4
- 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: Trimethylene; Trimethylene (cyclic); UN 1027; Cyclopropnane
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Henry's Law 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
0.013 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. Value at T = 294. K. | |
0.011 | 1700. | L | N/A |
Gas phase ion energetics data
Go To: Top, Henry's Law data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C3H6+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.86 ± 0.04 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 750.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 722.2 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.90 | PI | Traeger, 1984 | LBLHLM |
9.86 | EQ | Lias and Buckley, 1984 | LBLHLM |
10.60 | PE | Kimura, Katsumata, et al., 1981 | LLK |
9.8 ± 0.1 | PE | Bieri, Burger, et al., 1977 | LLK |
10.3 ± 0.1 | EI | Rothgery, Holt, et al., 1975 | LLK |
9.91 ± 0.03 | PI | Krassig, Reinke, et al., 1974 | LLK |
≤9.93 | EI | Lossing, 1972 | LLK |
≤9.8 | PE | Basch, Robin, et al., 1969 | RDSH |
10.1 | CI | Cermak, 1968 | RDSH |
10.06 ± 0.03 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
10.54 | PE | Plemenkov, Villem, et al., 1981 | Vertical value; LLK |
10.6 ± 0.1 | PE | Bieri, Burger, et al., 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH2+ | 19.3 | C2H4 | EI | Haney and Franklin, 1968 | RDSH |
C2H2+ | 12.71 ± 0.06 | CH4 | PI | Krassig, Reinke, et al., 1974 | LLK |
C2H2+ | 13.1 | CH4 | EI | Haney and Franklin, 1968 | RDSH |
C2H3+ | 12.64 ± 0.05 | CH3 | PI | Krassig, Reinke, et al., 1974 | LLK |
C2H3+ | 13.4 | CH3 | EI | Haney and Franklin, 1968 | RDSH |
C2H3+ | 13.3 ± 0.2 | CH3 | EI | Harrison and Tait, 1962 | RDSH |
C3H+ | 19.7 ± 0.5 | 2H2+H | EI | Harrison and Tait, 1962 | RDSH |
C3H3+ | 12.1 ± 0.1 | H2+H(-) | PI | Krassig, Reinke, et al., 1974 | LLK |
C3H3+ | 12.9 ± 0.1 | H2+H | PI | Krassig, Reinke, et al., 1974 | LLK |
C3H3+ | 13.7 ± 0.1 | H2+H | EI | Harrison and Tait, 1962 | RDSH |
C3H4+ | 11.64 ± 0.15 | H2 | PI | Krassig, Reinke, et al., 1974 | LLK |
C3H4+ | 11.6 ± 0.1 | H2 | EI | Harrison and Tait, 1962 | RDSH |
C3H5+ | 11.43 | H | PI | Traeger, 1984 | LBLHLM |
C3H5+ | 11.47 | H | PI | Buttrill, Williamson, et al., 1975 | LLK |
C3H5+ | 10.74 ± 0.09 | H(-) | PI | Krassig, Reinke, et al., 1974 | LLK |
C3H5+ | 11.44 ± 0.05 | H | PI | Krassig, Reinke, et al., 1974 | LLK |
C3H5+ | 11.49 | H | EI | Lossing, 1972 | LLK |
De-protonation reactions
C3H5- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1716. ± 10. | kJ/mol | AVG | N/A | Average of 5 out of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1676. ± 10. | kJ/mol | AVG | N/A | Average of 3 out of 6 values; Individual data points |
References
Go To: Top, Henry's Law 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.
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]
Traeger, 1984
Traeger, J.C.,
A study of the allyl cation thermochemistry by photoionization mass spectrometry,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 259. [all data]
Lias and Buckley, 1984
Lias, S.G.; Buckley, T.J.,
Structures and reactions of C3H6+ ions generated in cyclopropane,
Int. J. Mass Spectrom. Ion Processes, 1984, 56, 123. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P.,
Valence ionization enrgies of hydrocarbons,
Helv. Chim. Acta, 1977, 60, 2213. [all data]
Rothgery, Holt, et al., 1975
Rothgery, E.F.; Holt, J.; McGee, H.A., Jr.,
Cryochemical synthesis and molecular energetics of cyclopropanone and some related compounds,
J. Am. Chem. Soc., 1975, 97, 4971. [all data]
Krassig, Reinke, et al., 1974
Krassig, R.; Reinke, D.; Baumgartel, H.,
Photo-reaktionen kleiner organischer molekule II. Die photoionenspektren der Isomeren propylen-cyclopropan und acetaldehyd-athylenoxyd,
Ber. Bunsen-Ges. Phys. Chem., 1974, 78, 425. [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]
Basch, Robin, et al., 1969
Basch, H.; Robin, M.B.; Kuebler, N.A.; Baker, C.; Turner, D.W.,
Optical and photoelectron spectra of small rings. III. The saturated three-membered rings,
J. Chem. Phys., 1969, 51, 52. [all data]
Cermak, 1968
Cermak, V.,
Penning ionization electron spectroscopy. I. Determination of ionization potentials of polyatomic molecules,
Collection Czech. Chem. Commun., 1968, 33, 2739. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Plemenkov, Villem, et al., 1981
Plemenkov, V.V.; Villem, Y.Y.; Villem, N.V.; Bolesov, I.G.; Surmina, L.S.; Yakushkina, N.I.; Formanovskii, A.A.,
Photoelectron spectra of polyalkylcyclopropenes and polyalkylcyclopropanes,
Zh. Obshch. Khim., 1981, 51, 2076. [all data]
Haney and Franklin, 1968
Haney, M.A.; Franklin, J.L.,
Correlation of excess energies of electron-impact dissociations with the translational energies of the products,
J.Chem. Phys., 1968, 48, 4093. [all data]
Harrison and Tait, 1962
Harrison, A.G.; Tait, J.M.S.,
Concurrent ion-molecule reactions leading to the same product ion,
Can. J. Chem., 1962, 40, 1986. [all data]
Buttrill, Williamson, et al., 1975
Buttrill, S.E., Jr.; Williamson, A.D.; LeBreton, P.,
Photoionization measurement of the heat of formation of allyl cations,
J. Chem. Phys., 1975, 62, 1586. [all data]
Notes
Go To: Top, Henry's Law data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K 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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