Bicyclo[4.1.0]heptane
- Formula: C7H12
- Molecular weight: 96.1702
- IUPAC Standard InChIKey: WPHGSKGZRAQSGP-UHFFFAOYSA-N
- CAS Registry Number: 286-08-8
- 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: Norcarane; cis-Bicyclo[4.1.0]heptane
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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 0.4 ± 1.0 | kcal/mol | Ccb | Chang, McNally, et al., 1970 | ALS |
ΔfH°gas | 2.63 | kcal/mol | N/A | Timofeeva, Kozina, et al., 1970 | Value computed using ΔfHliquid° value of -27.0±1.7 kj/mol from Timofeeva, Kozina, et al., 1970 and ΔvapH° value of 38.0 kj/mol from Chang, McNally, et al., 1970.; DRB |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
28.671 | 298.15 | Chang S., 1970 | These values were calculated by a method of force field; their uncertainties may exceed 5-10 J/mol*K.; GT |
39.369 | 400. | ||
48.850 | 500. |
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -8.7 ± 0.8 | kcal/mol | Ccb | Chang, McNally, et al., 1970 | |
ΔfH°liquid | -6.45 ± 0.41 | kcal/mol | Ccb | Timofeeva, Kozina, et al., 1970 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1059.5 ± 0.6 | kcal/mol | Ccb | Chang, McNally, et al., 1970 | Corresponding ΔfHºliquid = -8.7 kcal/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -1061.80 ± 0.40 | kcal/mol | Ccb | Timofeeva, Kozina, et al., 1970 | Corresponding ΔfHºliquid = -6.45 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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 383. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tboil | 389. | K | N/A | Doering and Hoffman, 1964 | Uncertainty assigned by TRC = 3. K; TRC |
Tboil | 389. | K | N/A | Simmons and Smith, 1959 | Uncertainty assigned by TRC = 2. K; TRC |
Tboil | 389. | K | N/A | Simmons and Smith, 1959 | Uncertainty assigned by TRC = 2. K; TRC |
Tboil | 389. | K | N/A | Doering and Hoffman, 1954 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.70 ± 0.05 | kcal/mol | N/A | Osmont, Catoire, et al., 2008 | AC |
ΔvapH° | 9.1 ± 0.2 | kcal/mol | V | Chang, McNally, et al., 1970 | ALS |
ΔvapH° | 9.08 | kcal/mol | N/A | Chang, McNally, et al., 1970 | DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.1 ± 0.2 | 313. | A | Stephenson and Malanowski, 1987 | Based on data from 298. to 385. K. See also Chang, McNally, et al., 1970.; AC |
8.72 | 348. | A | Stephenson and Malanowski, 1987 | Based on data from 333. to 385. K.; AC |
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C7H12+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.03 ± 0.02 | EI | Winters and Collins, 1968 | RDSH |
9.46 | PE | Heilbronner, Gleiter, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H3+ | 12.53 ± 0.12 | ? | EI | Winters and Collins, 1968 | RDSH |
C3H5+ | 11.90 ± 0.10 | ? | EI | Winters and Collins, 1968 | RDSH |
C4H5+ | 12.42 ± 0.10 | ? | EI | Winters and Collins, 1968 | RDSH |
C4H6+ | 10.10 ± 0.09 | ? | EI | Winters and Collins, 1968 | RDSH |
C4H7+ | 10.27 ± 0.08 | ? | EI | Winters and Collins, 1968 | RDSH |
C5H7+ | 9.53 ± 0.07 | C2H5 | EI | Winters and Collins, 1968 | RDSH |
C5H8+ | 9.37 ± 0.07 | C2H4 | EI | Winters and Collins, 1968 | RDSH |
C6H9+ | 9.30 ± 0.09 | CH3 | EI | Winters and Collins, 1968 | RDSH |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Squalane | 90. | 797. | Engewald, Epsch, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.23 mm |
Capillary | Squalane | 70. | 796. | Schomburg, 1966 |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Squalane | 796. | Chen, 2008 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chang, McNally, et al., 1970
Chang, Sho-ju.; McNally, D.; Shary-Tehrany, S.; Hickey, S.M.J.; Boyd, R.H.,
The heats of combustion and strain energies of bicylo[n.m.O]alkanes,
J. Am. Chem. Soc., 1970, 92, 3109-3118. [all data]
Timofeeva, Kozina, et al., 1970
Timofeeva, L.P.; Kozina, M.P.; Skuratov, S.M.; Nefedov, O.M.; Novitskaya, N.N.,
Heats of combustion of norcarane and 1-cyclohexylnorcarane,
Moscow Univ. Chem. Bull. (Engl. Transl.), 1970, 25, 19-21. [all data]
Chang S., 1970
Chang S.,
The heats of combustion and strain energies of bicyclo[n.m.0]alkanes,
J. Am. Chem. Soc., 1970, 92, 3109-3118. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Doering and Hoffman, 1964
Doering, W. vonE.; Hoffman, A.K.,
The Addition of Dichlorocarbene to Olefins,
J. Am. Chem. Soc., 1964, 76, 6162-5. [all data]
Simmons and Smith, 1959
Simmons, H.E.; Smith, R.D.,
A New Synthesis of Cyclopropanes,
J. Am. Chem. Soc., 1959, 81, 4256. [all data]
Doering and Hoffman, 1954
Doering, W. vonE.; Hoffman, A.K.,
J. Am. Chem. Soc., 1954, 76, 6162. [all data]
Osmont, Catoire, et al., 2008
Osmont, Antoine; Catoire, Laurent; Gokalp, Iskender,
Physicochemical Properties and Thermochemistry of Propellanes,
Energy Fuels, 2008, 22, 4, 2241-2257, https://doi.org/10.1021/ef8000423
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Winters and Collins, 1968
Winters, R.E.; Collins, J.H.,
Mass spectrometric studies of structural isomers. I. Mono- and bicyclic C7H12 molecules,
J. Am. Chem. Soc., 1968, 90, 1235. [all data]
Heilbronner, Gleiter, et al., 1973
Heilbronner, E.; Gleiter, R.; Hoshi, T.; Meijere, A.,
The interaction of Walsh-orbitals in diademane and related hydrocarbons,
Helv. Chim. Acta, 1973, 56, 1594. [all data]
Engewald, Epsch, et al., 1976
Engewald, W.; Epsch, K.; Welsch, Th.; Graefe, J.,
Molekülstruktur und Retentionsverhalten. VI. Retentionsverhalten von bicycle[n.m.0]alkanen bei der gas-adsorptions- und gas-verteilungs-chromatographie,
J. Chromatogr., 1976, 119, 119-128, https://doi.org/10.1016/S0021-9673(00)86776-X
. [all data]
Schomburg, 1966
Schomburg, G.,
Gaschromatographische Retentionsdaten und struktur chemischer verbindungen. III. Alkylverzweigte und ungesättigte cyclische Kohlenwasserstoffe,
J. Chromatogr., 1966, 23, 18-41, https://doi.org/10.1016/S0021-9673(01)98653-4
. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy Cp,gas Constant pressure heat capacity of gas Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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