Cyclononane
- Formula: C9H18
- Molecular weight: 126.2392
- IUPAC Standard InChI: InChI=1S/C9H18/c1-2-4-6-8-9-7-5-3-1/h1-9H2
- IUPAC Standard InChIKey: GPTJTTCOVDDHER-UHFFFAOYSA-N
- CAS Registry Number: 293-55-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°liquid | -5931.4 ± 0.9 | kJ/mol | Ccb | Kaarsemaker and Coops, 1952 | Corresponding ΔfHºliquid = -182.7 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Reaction thermochemistry data
Go To: Top, Condensed phase 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 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
2 +
=
By formula: 2H2 + C9H14 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -193.8 ± 1.1 | kJ/mol | Chyd | Turner, Mallon, et al., 1973 | liquid phase; solvent: Glacial acetic acid |
2 +
=
By formula: 2H2 + C9H14 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -211.8 ± 1.3 | kJ/mol | Chyd | Turner, Mallon, et al., 1973 | liquid phase; solvent: Glacial acetic acid |
+
=
By formula: H2 + C9H16 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -110.8 ± 0.59 | kJ/mol | Chyd | Turner and Meador, 1957 | liquid phase; solvent: Acetic acid |
3 + C9H12 =
By formula: 3H2 + C9H12 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -321.7 ± 0.2 | kJ/mol | Chyd | Roth, Bang, et al., 1964 | liquid phase; solvent: Acetic acid |
2 +
=
By formula: 2H2 + C9H14 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -259.1 ± 1.3 | kJ/mol | Chyd | Turner, Jarrett, et al., 1973 | liquid phase; solvent: Acetic acid |
+
=
By formula: H2 + C9H16 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -98.8 ± 0.3 | kJ/mol | Chyd | Turner and Meador, 1957 | liquid phase; solvent: Acetic acid |
4 +
=
By formula: 4H2 + C9H10 = C9H18
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -504.2 ± 0.4 | kJ/mol | Chyd | Roth, Adamczak, et al., 1991 | liquid phase |
References
Go To: Top, Condensed phase thermochemistry 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.
Kaarsemaker and Coops, 1952
Kaarsemaker, S.; Coops, J.,
Thermal quantities of some cycloparaffins. Part III. Results of measurements,
Rec. Trav. Chim. Pays/Bas, 1952, 71, 261. [all data]
Turner, Mallon, et al., 1973
Turner, R.B.; Mallon, B.J.; Tichy, M.; Doering, W.v.E.; Roth, W.R.; Schroder, G.,
Heats of hydrogenation. X. Conjugative interaction in cyclic dienes and trienes,
J. Am. Chem. Soc., 1973, 95, 8605-8610. [all data]
Turner and Meador, 1957
Turner, R.B.; Meador, W.R.,
Heats of hydrogenation. IV. Hydrogenation of some cis- and trans-cycloolefins,
J. Am. Chem. Soc., 1957, 79, 4133-4136. [all data]
Roth, Bang, et al., 1964
Roth, W.R.; Bang, W.B.; Goebel, P.; Sass, R.L.; Sass, R.L.; Turner, R.B.; Yu, A.P.,
On the question of homoconjugation in cis,cis,cis-1,4,7-cyclononatriene,
J. Am. Chem. Soc., 1964, 86, 3178-3179. [all data]
Turner, Jarrett, et al., 1973
Turner, R.B.; Jarrett, A.D.; Goebel, P.; Mallon, B.J.,
Heats of hydrogenation. 9. Cyclic acetylenes and some miscellaneous olefins,
J. Am. Chem. Soc., 1973, 95, 790-792. [all data]
Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R.,
Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld,
Chem. Ber., 1991, 124, 2499-2521. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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