Cyclopentane, pentyl-

• Formula: C₁₀H₂₀
• Molecular weight: 140.2658
• IUPAC Standard InChI: InChI=1S/C10H20/c1-2-3-4-7-10-8-5-6-9-10/h10H,2-9H2,1H3 Copy

  
• IUPAC Standard InChIKey: HPQURZRDYMUHJI-UHFFFAOYSA-N Copy
• CAS Registry Number: 3741-00-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Pentane, 1-cyclopentyl-; Cyclopentane, n-pentyl-; Pentylcyclopentane; n-Pentylcyclopentane; n-Amylcyclopentane
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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Gas phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Henry's Law 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 by: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/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(k_H))/d(1/T) = Temperature dependence constant (K)

Gas phase ion energetics 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

Mass spectrum (electron ionization)

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, temperature ramp

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH₂ group for several homologous series of hydrocarbons, J. Res. NBS, 1946, 37, 51-56. [all data]

Larsen, Thorpe, et al., 1942
Larsen, R.G.; Thorpe, R.E.; Armfield, F.A., Oxidation Characteristics of Pure Hydrocarbons, Ind. Eng. Chem., 1942, 34, 183. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Rang, Paldoia, et al., 1974
Rang, S.; Paldoia, P.; Talvari, A., Ionization potentials of unsaturated hydrocarbons. 2. Mono-substituted cyclopentenes and cyclohexenes, Eesti. NSV Tead. Akad. Toim., 1974, 354. [all data]

Anders, Anders, et al., 1985
Anders, G.; Anders, K.; Engewald, W., Identification of non-branched alkenylcycloalkanes with a terminal double bond from retention index increments, Chromatographia, 1985, 20, 2, 83-86, https://doi.org/10.1007/BF02280602 . [all data]

Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S., Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]

Rang, Orav, et al., 1977
Rang, S.; Orav, A.; Kuningas, K.; Eisen, O., Capillary Gas Chromatography of Monosubstituted Cyclopentenes and Cyclohexenes, Chromatographia, 1977, 10, 3, 115-122, https://doi.org/10.1007/BF02297862 . [all data]

Dielmann, Schwengers, et al., 1974
Dielmann, G.; Schwengers, D.; Schomburg, G., Gas-chromatographische Retentionsdaten und Strukture chemischer Verbindungen Gesättigte und ungesättigte alkylsubstituierte Cyclopentane und Methylcyclopentane, Chromatographia, 1974, 7, 5, 215-224, https://doi.org/10.1007/BF02321771 . [all data]

Mitra, Mohan, et al., 1974
Mitra, G.D.; Mohan, G.; Sinha, A., Gas chromatographic analysis of complex hydrocarbon mixtures, J. Chromatogr. A, 1974, 91, 633-648, https://doi.org/10.1016/S0021-9673(01)97944-0 . [all data]

Louis, 1971
Louis, R., Kovats-index-tafeln zur gaschromatographischen analyse von kohlenwasserstoffgemischen, Erdoel Kohle Erdgas Petrochem., 1971, 24, 2, 88-94. [all data]

Rang, Orav, et al., 1988
Rang, S.A.; Orav, A.E.; Kuningas, K.R.; Meister, A.E.; Strense, T.V.; Eisen, O.G., Gas-Chromatographic Characteristics of unsaturated hydrocarbons, Academy of Sciences of Estonia SSR, Tallinn, Estonia SSR, 1988, 208. [all data]

Orav, Kuningas, et al., 1982
Orav, A.; Kuningas, K.; Rang, S.; Eisen, O., Capillary gas chromatography of monosubstituted cyclopentenes and cyclohexenes C₈-C₁₅ on polyethylene glycol 20M, Eesti NSV Tead. Akad. Toim. Keem., 1982, 40-49. [all data]

White, Hackett, et al., 1992
White, C.M.; Hackett, J.; Anderson, R.R.; Kail, S.; Spock, P.S., Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross-linked polydimethylsiloxane, J. Hi. Res. Chromatogr., 1992, 15, 2, 105-120, https://doi.org/10.1002/jhrc.1240150211 . [all data]

Kotowska, Zalikowski, et al., 2012
Kotowska, U.; Zalikowski, M.; Isidorov, V.A., HS-SPME/GC-MS analysis of volatile and semi-volatile organic compounds emitted from municipal sewage sludge, Environ. Monit. Asses., 2012, 184, 5, 2893-2907, https://doi.org/10.1007/s10661-011-2158-8 . [all data]

Alencar, Alves, et al., 1983
Alencar, J.W.; Alves, P.B.; Craveiro, A.A., Pyrolysis of tropical vegetable oils, J. Agric. Food Chem., 1983, 31, 6, 1268-1270, https://doi.org/10.1021/jf00120a031 . [all data]

Chen, 2008
Chen, H.-F., Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression, Anal. Chim. Acta, 2008, 609, 1, 24-36, https://doi.org/10.1016/j.aca.2008.01.003 . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  Tboil	Boiling point
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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