2-Naphthalenecarboxylic acid
- Formula: C11H8O2
- Molecular weight: 172.1800
- IUPAC Standard InChIKey: UOBYKYZJUGYBDK-UHFFFAOYSA-N
- CAS Registry Number: 93-09-4
- 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: 2-Naphthoic acid; β-Naphthoic acid; Isonaphthoic acid; 2-Carboxynaphthalene; 2-Maythic acid; 2-Naphthioic acid; Naphthalene-β-carboxylic acid; NSC 59901; 2-Naphthylcarboxylic acid
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -82.71 ± 0.35 | kcal/mol | Ccb | Colomina, Roux, et al., 1974 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1228.0 ± 1.7 | kcal/mol | Ccb | Holdiness, 1983 | Corresponding ΔfHºsolid = -79.82 kcal/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°solid | -1225.11 ± 0.33 | kcal/mol | Ccb | Colomina, Roux, et al., 1974 | Corresponding ΔfHºsolid = -82.71 kcal/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°solid | -1225.11 ± 0.32 | kcal/mol | Ccb | Sabbah and Gilbert, 1974 | Corresponding ΔfHºsolid = -82.715 kcal/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
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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
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 458.15 | K | N/A | Khetarpal, Lal, et al., 1979 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 457.2 | K | N/A | Berliner and Winicov, 1959 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 457.56 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.35 K; TRC |
Tfus | 458.75 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.25 K; TRC |
Tfus | 458. | K | N/A | Bailey and Golden, 1953 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 27.15 | kcal/mol | N/A | Colomina, Roux, et al., 1974 | DRB |
ΔsubH° | 28.009 | kcal/mol | C | Sabbah and Gilbert, 1974 | ALS |
ΔsubH° | 28.01 | kcal/mol | C | Sabbah and Gilbert, 1974 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.6 | 478. | A | Stephenson and Malanowski, 1987 | Based on data from 463. to 582. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
27.15 ± 0.19 | 355.6 | V | Colomina, Roux, et al., 1974 | ALS |
27.2 ± 0.2 | 365. | ME | Colomina, Roux, et al., 1974 | Based on data from 347. to 363. K. See also Pedley and Rylance, 1977 and Stephenson and Malanowski, 1987.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
5.626 | 460.2 | Acree, 1991 | AC |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, 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, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.26 | PE | Klasinc, Kovac, et al., 1983 | |
8.26 | PE | Klasinc, Kovac, et al., 1983 | Vertical value |
References
Go To: Top, Condensed phase thermochemistry data, 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.
Colomina, Roux, et al., 1974
Colomina, M.; Roux, M.V.; Turrion, C.,
Thermochemical properties of naphthalene compounds. I. Enthalpies of combustion and formation of the 1- and 2-naphthoic acids,
J. Chem. Thermodyn., 1974, 6, 149-155. [all data]
Holdiness, 1983
Holdiness, M.R.,
Heats of atomization and resonance energy of some ortho-substituted benzoic acids,
Thermochim. Acta, 1983, 71, 257-263. [all data]
Sabbah and Gilbert, 1974
Sabbah, R.; Gilbert, E.M.,
Determination de L'energie de conjugaison des acides naphtoiques,
Thermochim. Acta, 1974, 10, 345-351. [all data]
Khetarpal, Lal, et al., 1979
Khetarpal, S.C.; Lal, K.; Bhatnagar, H.L.,
Thermodynamic Studies on Melting of Some α- and β-Derivitives of Naphthalene,
Aust. J. Chem., 1979, 32, 49. [all data]
Berliner and Winicov, 1959
Berliner, E.; Winicov, E.H.,
Dissociation Constants of Nitronaphtoic Acid,
J. Am. Chem. Soc., 1959, 81, 1630-5. [all data]
Witschonke, 1954
Witschonke, C.R.,
Freezing point and purity data for some organic compounds,
Anal. Chem., 1954, 26, 562-4. [all data]
Bailey and Golden, 1953
Bailey, W.J.; Golden, H.R.,
Cyclic Dienes I. 1,2-Dimethylenecyclohexane,
J. Am. Chem. Soc., 1953, 75, 4780-2. [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]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
, Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brighton, 1977. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Klasinc, Kovac, et al., 1983
Klasinc, L.; Kovac, B.; Gusten, H.,
Photoelectron spectra of acenes. Electronic structure and substituent effects,
Pure Appl. Chem., 1983, 55, 289. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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