Indane
- Formula: C9H10
- Molecular weight: 118.1757
- IUPAC Standard InChIKey: PQNFLJBBNBOBRQ-UHFFFAOYSA-N
- CAS Registry Number: 496-11-7
- 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: 1H-Indene, 2,3-dihydro-; Indan; Benzocyclopentane; Hydrindene; Indene, 2,3-dihydro-; 1,2-Hydrindene; 2,3-Dihydroindene; 2,3-Dihydro-1H-indene; Hydrindonaphthene; NSC 5292
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -98.9 ± 1.4 | kJ/mol | Chyd | Hill, Morton, et al., 1980 | liquid phase |
ΔrH° | -96. | kJ/mol | Eqk | Frye and Weitkamp, 1969 | gas phase |
ΔrH° | -90.48 ± 0.59 | kJ/mol | Eqk | Naidus and Mueller, 1950 | gas phase; At 375-525 K |
By formula: 6H2 + 2C9H10 = C9H16 + C9H16
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -377.1 ± 2.1 | kJ/mol | Chyd | Dolliver, Gresham, et al., 1937 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -383. ± 2. kJ/mol; At 355 °K |
By formula: 3H2 + C9H10 = C9H16
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -192. | kJ/mol | Eqk | Frye and Weitkamp, 1969 | gas phase |
Gas phase ion energetics 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:
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 C9H10+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.6 ± 0.1 | EI | Koppel, Schwarz, et al., 1974 | LLK |
8.60 ± 0.01 | EI | Rakita, Hoffman, et al., 1973 | LLK |
8.52 | CTS | Pitt, 1970 | RDSH |
9.05 ± 0.05 | EI | Meier, Heiss, et al., 1968 | RDSH |
8.50 | PE | Santiago, Gandour, et al., 1978 | Vertical value; LLK |
8.46 ± 0.03 | PE | Heilbronner, Hoshi, et al., 1976 | Vertical value; LLK |
8.45 ± 0.02 | PE | Maier and Turner, 1973 | Vertical value; LLK |
8.46 | PE | Brogli, Giovannini, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C9H9+ | 12.1 ± 0.1 | H | EI | Koppel, Schwarz, et al., 1974 | LLK |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hill, Morton, et al., 1980
Hill, R.K.; Morton, G.H.; Rogers, D.W.; Choi, L.S.,
Rearrangement of 1,1'-spirobiindene and thermochemical evidence for its spiroconjugative destabilization,
J. Org. Chem., 1980, 45, 5163-5166. [all data]
Frye and Weitkamp, 1969
Frye, C.G.; Weitkamp, A.W.,
Equilibrium hydrogenations of multi-ring aromatics,
J. Chem. Eng. Data, 1969, 14, 372-376. [all data]
Naidus and Mueller, 1950
Naidus, E.S.; Mueller, M.B.,
Equilibrium studies on the hydrindene-indene-hydrogen system,
J. Am. Chem. Soc., 1950, 72, 1829-1831. [all data]
Dolliver, Gresham, et al., 1937
Dolliver, M.a.; Gresham, T.L.; Kistiakowsky, G.B.; Vaughan, W.E.,
Heats of organic reactions. V. Heats of hydrogenation of various hydrocarbons,
J. Am. Chem. Soc., 1937, 59, 831-841. [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]
Koppel, Schwarz, et al., 1974
Koppel, C.; Schwarz, H.; Bohlmann, F.,
Elektronenstossinduzierte fragmentierung von acetylenverbindungen. VIII. Struktur der stabilen und instabilen ionen[C9H9]+ aus isomeren C9H10- kohlenwasserstoffen,
Org. Mass Spectrom., 1974, 8, 25. [all data]
Rakita, Hoffman, et al., 1973
Rakita, P.E.; Hoffman, M.K.; Andrews, M.N.; Bursey, M.M.,
σ-π Conjugation in group IVA compounds of indene and indane,
J. Organomet. Chem., 1973, 49, 213. [all data]
Pitt, 1970
Pitt, C.G.,
Hyperconjugation: An alternative to the concept of the pπ-dπ bond in Group IV chemistry,
J. Organomet. Chem., 1970, 23, 35. [all data]
Meier, Heiss, et al., 1968
Meier, H.; Heiss, J.; Suhr, H.; Muller, E.,
Energetische Untersuchungen zum Mills-Nixon-Effekt. Ionisierungsenergien von Benzolmolekulen mit ankondensierten gesattigten Ringen,
Tetrahedron, 1968, 24, 2307. [all data]
Santiago, Gandour, et al., 1978
Santiago, C.; Gandour, R.W.; Houk, K.N.; Nutakul, W.; Cravey, W.E.; Thummel, R.P.,
Photoelectron and ultraviolet spectra of small-ring fused aromatic molecules as probes of aromatic ring distortions,
J. Am. Chem. Soc., 1978, 100, 3730. [all data]
Heilbronner, Hoshi, et al., 1976
Heilbronner, E.; Hoshi, T.; von Rosenberg, J.L.; Hafner, K.,
Alkyl-induced, natural hypsochromic shifts of the 2A←2X and 2B←2X transitions of azulene and naphthalene radical cations,
Nouv. J. Chim., 1976, 1, 105. [all data]
Maier and Turner, 1973
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part 2. Phenylethylenes,
J. Chem. Soc. Faraday Trans. 2, 1973, 69, 196. [all data]
Brogli, Giovannini, et al., 1973
Brogli, F.; Giovannini, E.; Heilbronner, E.; Schurter, R.,
Die photoelektronen spektren der benzocycloalkene,
Chem. Ber., 1973, 106, 961. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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