Cycloheptanol
- Formula: C7H14O
- Molecular weight: 114.1855
- IUPAC Standard InChIKey: QCRFMSUKWRQZEM-UHFFFAOYSA-N
- CAS Registry Number: 502-41-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Suberol
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Phase change data
Go To: Top, Reaction thermochemistry 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 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
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 458.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 280.30 | K | N/A | Adachi, Suga, et al., 1972 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
64.7 | 299. | A | Stephenson and Malanowski, 1987 | Based on data from 284. to 323. K.; AC |
67.4 | 299. | N/A | Cabani, Conti, et al., 1975 | Based on data from 284. to 321. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.51 | 278.3 | Rute, Salud, et al., 2003 | AC |
1.6 | 280.3 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
16.98 | 172.2 | Domalski and Hearing, 1996 | CAL |
2.44 | 227.3 | ||
3.39 | 258.4 | ||
5.72 | 280.3 |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
128.2 | "crystaline | III"" | Adachi, Suga, et al., 1972, 2 | DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.875 | 258.45 | crystaline, II | crystaline, I | Adachi, Suga, et al., 1972, 2 | DH |
2.925 | 172.23 | crystaline, II' | crystaline, II | Adachi, Suga, et al., 1972, 2 | between 162.50 and 176.50; DH |
0.554 | 227.26 | crystaline, III | crystaline, II | Adachi, Suga, et al., 1972, 2 | DH |
0.05807 | 152.30 | crystaline, III' | crystaline, III | Adachi, Suga, et al., 1972, 2 | DH |
1.604 | 280.30 | crystaline, I | liquid | Adachi, Suga, et al., 1972, 2 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
3.39 | 258.45 | crystaline, II | crystaline, I | Adachi, Suga, et al., 1972, 2 | DH |
2.44 | 227.26 | crystaline, III | crystaline, II | Adachi, Suga, et al., 1972, 2 | DH |
0.38 | 152.30 | crystaline, III' | crystaline, III | Adachi, Suga, et al., 1972, 2 | DH |
5.72 | 280.30 | crystaline, I | liquid | Adachi, Suga, et al., 1972, 2 | DH |
Reaction thermochemistry data
Go To: Top, Phase change 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 as indicated in comments:
B - John E. Bartmess
ALS - 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
C7H13O- + =
By formula: C7H13O- + H+ = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1559. ± 8.4 | kJ/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1532. ± 8.8 | kJ/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
By formula: H2 + C7H12O = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -62.5 ± 0.4 | kJ/mol | Chyd | Wiberg, Crocker, et al., 1991 | liquid phase; ALS |
ΔrH° | -46. ± 1. | kJ/mol | Chyd | Wiberg, Crocker, et al., 1991 | gas phase; ALS |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Adachi, Suga, et al., 1972
Adachi, K.; Suga, H.; Seki, S.,
Calorimetric Study of the Glassy State. VII. Phase Changes Between the Crystalline Phases of Cycloheptanol with Various Degrees of Stability,
Bull. Chem. Soc. Jpn., 1972, 45, 1960-72. [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]
Cabani, Conti, et al., 1975
Cabani, Sergio; Conti, G.; Mollica, V.; Lepori, L.,
Thermodynamic study of dilute aqueous solutions of organic compounds. Part 4.---Cyclic and straight chain secondary alcohols,
J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 1943, https://doi.org/10.1039/f19757101943
. [all data]
Rute, Salud, et al., 2003
Rute, M.A.; Salud, J.; Negrier, P.; López, D.O.; Tamarit, J.Ll.; Puertas, R.; Barrio, M.; Mondieig, D.,
Two-Component System Cycloheptanol (C7) + Cyclooctanol (C8): An Extraordinary System,
J. Phys. Chem. B, 2003, 107, 24, 5914-5921, https://doi.org/10.1021/jp022193d
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Adachi, Suga, et al., 1972, 2
Adachi, K.; Suga, H.; Seki, S.,
Calorimetric study of the glassy state. VII. Phase changes between the crystalline phases of cycloheptanol with various degrees of stability,
Bull. Chem. Soc. Japan, 1972, 45, 1960-1972. [all data]
Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G.,
The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols,
Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W
. [all data]
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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