Naphthalic anhydride
- Formula: C12H6O3
- Molecular weight: 198.1742
- IUPAC Standard InChI: InChI=1S/C12H6O3/c13-11-8-5-1-3-7-4-2-6-9(10(7)8)12(14)15-11/h1-6H
- IUPAC Standard InChIKey: GRSMWKLPSNHDHA-UHFFFAOYSA-N
- CAS Registry Number: 81-84-5
- 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: 1,8-Naphthalic anhydride; 1H,3H-Naphtho[1,8-cd]pyran-1,3-dione; Naphthalic acid anhydride; Protect; 1,8-Naphthalenedicarboxylic acid anhydride; 1,8-Naphthalenedicarboxylic anhydride; 1,8-Naphthalic acid anhydride; Naphthalenedicarboxylic-1,8-anhydride; Naphthalene-1,8-dicarboxylic acid anhydride; 1,8-Naphthoic anhydride; Protect (agrochemical); Benzo[de]isochromene-1,3-dione; 1,8-Naphthanoic anhydride; NSC 5747; naphthalene-1,8-dicarboxylic anhydride
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Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 545.7 | K | N/A | Donnelly, Drewes, et al., 1990 | Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 5.574 | 542.3 | DSC | Donnelly, Drewes, et al., 1990, 2 | AC |
Gas phase ion energetics 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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.92 ± 0.05 | PE | Bigotto, Galasso, et al., 1979 | Vertical value |
References
Go To: Top, Phase change 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.
Donnelly, Drewes, et al., 1990
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W.,
Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry,
Thermochim. Acta, 1990, 167, 2, 155, https://doi.org/10.1016/0040-6031(90)80476-F
. [all data]
Donnelly, Drewes, et al., 1990, 2
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W.,
Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry,
Thermochimica Acta, 1990, 167, 2, 155-187, https://doi.org/10.1016/0040-6031(90)80476-F
. [all data]
Bigotto, Galasso, et al., 1979
Bigotto, A.; Galasso, V.; Distefano, G.; Modelli, A.,
Photoelectron and electronic spectra of acenaphthenequinone, naphthalic anhydride, and naphthalimide,
J. Chem. Soc. Perkin Trans. 2, 1979, 1502. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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