Cyclopentanol

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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-58.08kcal/molN/AWiberg, Wasserman, et al., 1985Value computed using ΔfHliquid° value of -300.4±1.0 kj/mol from Wiberg, Wasserman, et al., 1985 and ΔvapH° value of 57.4 kj/mol from Sellers and Sunner, 1962.; DRB
Δfgas-57.98 ± 0.40kcal/molCcbSellers and Sunner, 1962Reanalyzed by Cox and Pilcher, 1970, Original value = -57.63 kcal/mol; ALS
Δfgas-58.05kcal/molN/AParks, Mosley, et al., 1950Value computed using ΔfHliquid° value of -300.3±0.2 kj/mol from Parks, Mosley, et al., 1950 and ΔvapH° value of 57.4 kj/mol from Sellers and Sunner, 1962.; DRB

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
25.198298.15Kabo G.J., 1995Selected thermodynamic functions were calculated so that statistical entropy value at 340 K was put into agreement with the experimental one by adjusting the pseudorotational moment of inertia. Statistically calculated S(T) and Cp(T) values given in [ Thermodynamics Research Center, 1997] are 2-13 and 7-9 J/mol*K, respectively, larger than those of [ Kabo G.J., 1995].; GT
25.356300.
33.941400.
41.592500.
47.971600.
53.239700.
57.670800.
61.424900.
64.6251000.

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:
B - John E. Bartmess
MM - Michael M. Meot-Ner (Mautner)
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 C5H10O+ (ion structure unspecified)

Proton affinity at 298K

Proton affinity (kcal/mol) Reference Comment
191. ± 1.Cao and Holmes, 2001MM

Ionization energy determinations

IE (eV) Method Reference Comment
9.72PITraeger, 1985LBLHLM
9.58 ± 0.06EIHolmes, Yuan, et al., 1977LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H5O+9.72C2H5PITraeger, 1985LBLHLM
C3H6O+9.98C2H4EIHolmes and Lossing, 1980LLK
C5H8+9.66 ± 0.06H2OEIHolmes, Yuan, et al., 1977LLK
C5H8+9.49H2OEILewis and Hamill, 1970RDSH
H2O+13.23C5H8EILewis and Hamill, 1970RDSH

De-protonation reactions

C5H9O- + Hydrogen cation = Cyclopentanol

By formula: C5H9O- + H+ = C5H10O

Quantity Value Units Method Reference Comment
Δr383.0 ± 4.6kcal/molD-EAAlconcel and Continetti, 2002gas phase; derived acidity seems ca. 10 kcal/mol too weak, and EA likewise; B
Quantity Value Units Method Reference Comment
Δr366.9 ± 1.1kcal/molN/AGarver, Yang, et al., 2011gas phase; B
Δr374.9 ± 4.7kcal/molH-TSAlconcel and Continetti, 2002gas phase; derived acidity seems ca. 10 kcal/mol too weak, and EA likewise; B

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

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


References

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

Wiberg, Wasserman, et al., 1985
Wiberg, K.B.; Wasserman, D.J.; Martin, E.J.; Murcko, M.A., Enthalpies of hydration of alkenes. 3. Cycloalkenes, J. Am. Chem. Soc., 1985, 107, 6019-6022. [all data]

Sellers and Sunner, 1962
Sellers, P.; Sunner, S., Heats of combustion of cyclic ketones and alcohols, Acta Chem. Scand., 1962, 16, 46-52. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Parks, Mosley, et al., 1950
Parks, G.S.; Mosley, J.R.; Peterson, P.V., Jr., Heats of combustion and formation of some organic compounds containing oxygen, J. Chem. Phys., 1950, 18, 152. [all data]

Kabo G.J., 1995
Kabo G.J., Thermodynamic properties, conformation, and phase transitions of cyclopentanol, J. Chem. Thermodyn., 1995, 27, 953-967. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Cao and Holmes, 2001
Cao, J.; Holmes, J.L., Determination of the proton affinities of secondary alcohols from the dissocation of proton-bound molecular trios, European J. Mass Spectrom., 2001, 7, 243-247. [all data]

Traeger, 1985
Traeger, J.C., Heat of formation for the propanoyl cation by photoionization mass spectrometry, Org. Mass Spectrom., 1985, 20, 223. [all data]

Holmes, Yuan, et al., 1977
Holmes, J.L.; Yuan, D.; Rye, R.T.B., Metastable ion studies VII-Loss of water from the molecular ion of cyclopentanol, Org. Mass Spectrom., 1977, 12, 254. [all data]

Holmes and Lossing, 1980
Holmes, J.L.; Lossing, F.P., Gas-phase heats of formation of keto and enol ions of carbonyl compounds., J. Am. Chem. Soc., 1980, 102, 1591. [all data]

Lewis and Hamill, 1970
Lewis, D.; Hamill, W.H., Excited states of neutral molecular fragments from appearance potentials by electron impact in a mass spectrometer, J. Chem. Phys., 1970, 52, 6348. [all data]

Alconcel and Continetti, 2002
Alconcel, L.S.; Continetti, R.E., Dissociation dynamics and stability of cyclopentoxy and cyclopentoxide, Chem. Phys. Lett., 2002, 366, 5-6, 642-649, https://doi.org/10.1016/S0009-2614(02)01633-0 . [all data]

Garver, Yang, et al., 2011
Garver, J.M.; Yang, Z.B.; Kato, S.; Wren, S.W.; Vogelhuber, K.M.; Lineberger, W.C.; Bierbaum, V.M., Gas Phase Reactions of 1,3,5-Triazine: Proton Transfer, Hydride Transfer, and Anionic sigma-Adduct Formation, J. Am. Soc. Mass Spectrom., 2011, 22, 7, 1260-1272, https://doi.org/10.1007/s13361-011-0133-9 . [all data]


Notes

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