Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

NOTICE: Due to scheduled maintenance at our Gaithersburg campus, this site will not be available from 5:00 pm EDT (21:00 UTC) on Friday October 25 until 5:00 pm (21:00 UTC) on Sunday October 27. We apologize for any inconvenience this outage may cause.

Cyclopropane, ethyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Condensed phase thermochemistry data

Go To: Top, Phase change data, Reaction thermochemistry data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafliquid-24.8 ± 0.79kJ/molCcbGood, 1971 
Quantity Value Units Method Reference Comment
Deltacliquid-3371.9 ± 0.75kJ/molCcbGood, 1971Corresponding «DELTA»fliquid = -24.8 kJ/mol (simple calculation by NIST; no Washburn corrections)
Deltacliquid-3384.kJ/molCmFierens and Nasielski, 1962Corresponding «DELTA»fliquid = -13. kJ/mol (simple calculation by NIST; no Washburn corrections)

Phase change data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, 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 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
Tboil309.1 ± 0.8KAVGN/AAverage of 11 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus123.87KN/AAnonymous, 1958Uncertainty assigned by TRC = 0.06 K; TRC
Tfus123.88KN/AAnonymous, 1958Uncertainty assigned by TRC = 0.03 K; TRC
Tfus123.74KN/AVan Volkenburgh, Greenlee, et al., 1949Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC
Tfus123.75KN/AAnonymous, 1947Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Ttriple123.55KN/APomerantz, Fookson, et al., 1954Uncertainty assigned by TRC = 0.2 K; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

Hydrogen + Cyclopropane, ethylidene- = Cyclopropane, ethyl-

By formula: H2 + C5H8 = C5H10

Quantity Value Units Method Reference Comment
Deltar-155.0 ± 0.63kJ/molChydTurner, Goebel, et al., 1968liquid phase; solvent: Acetic acid

Hydrogen + Cyclopropane,ethenyl- = Cyclopropane, ethyl-

By formula: H2 + C5H8 = C5H10

Quantity Value Units Method Reference Comment
Deltar-149. ± 4.2kJ/molChydChesick, 1963liquid phase; solvent: Acetic acid

Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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 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 ± 0.05EIHolmes and Lossing, 1991LL
9.50EILossing, 1972LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C4H7+10.34CH3EILossing, 1972LLK

IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

IR spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

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

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

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.
NIST MS number 19072

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

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]

Turner, Goebel, et al., 1968
Turner, R.B.; Goebel, P.; Mallon, B.J.; Doering, W.E.; Coburn, J.F., Jr.; Pomerantz, M., Heats of hydrogenation. VIII. Compounds with three- and four-membered rings, J. Am. Chem. Soc., 1968, 90, 4315-4322. [all data]

Chesick, 1963
Chesick, J.P., Kinetics of the thermal interconversion of 2-methylmethylenecyclopropane and ethylidenecyclopropane, J. Am. Chem. Soc., 1963, 85, 2720-2723. [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, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References