o-Xylylene
- Formula: C8H8
- Molecular weight: 104.1491
- IUPAC Standard InChI: InChI=1S/C8H8/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H2
- IUPAC Standard InChIKey: XURVRZSODRHRNK-UHFFFAOYSA-N
- CAS Registry Number: 32796-95-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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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
=
By formula: C8H8 = C8H8
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -54.8 | kJ/mol | Kin | Roth and Scholz, 1981 | gas phase |
| ΔrH° | -44.2 ± 1.9 | kJ/mol | Cm | Roth, Biermann, et al., 1978 | liquid phase |
=
By formula: C8H8 = C8H8
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 46.4 ± 0.8 | kJ/mol | Eqk | Roth, Ebbrecht, et al., 1988 | 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 evaluated by: Edward P. Hunter and Sharon G. Lias
View reactions leading to C8H8+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 898.8 | kJ/mol | N/A | Hunter and Lias, 1998 | |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 871.7 | kJ/mol | N/A | Hunter and Lias, 1998 |
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.
Roth and Scholz, 1981
Roth, W.R.; Scholz, B.P.,
Energy profile of the o-quinodimethane = benzocyclobutene equilibrium. Part 2.,
Chem. Ber., 1981, 114, 3741-3750. [all data]
Roth, Biermann, et al., 1978
Roth, W.R.; Biermann, M.; Dekker, H.; Jochems, R.; Mosselman, C.; Hermann, H.,
Energy profile of the o-quinodimethane-benzocyclobutene equilibrium,
Chem. Ber., 1978, 111, 3892-3903. [all data]
Roth, Ebbrecht, et al., 1988
Roth, W.R.; Ebbrecht, T.; Beitat, A.,
o-Quinodimethane-benzocyclobutene equilibrium: oxygen trapping technique,
Chem. Ber., 1988, 121, 1357-1358. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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