Naphthalene, 2-ethyl-
- Formula: C12H12
- Molecular weight: 156.2237
- IUPAC Standard InChIKey: RJTJVVYSTUQWNI-UHFFFAOYSA-N
- CAS Registry Number: 939-27-5
- 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: β-Ethylnaphthalene; 2-Ethylnaphthalene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
46.95 | 50. | Thermodynamics Research Center, 1997 | p=1 bar. A combination of experimental and estimated molecular parameters was used in this statistical thermodynamics calculation. |
71.73 | 100. | ||
97.41 | 150. | ||
124.6 | 200. | ||
167.3 | 273.15 | ||
182.3 | 298.15 | ||
183.4 | 300. | ||
240.5 | 400. | ||
289.5 | 500. | ||
329.7 | 600. | ||
362.6 | 700. | ||
389.8 | 800. | ||
412.6 | 900. | ||
431.8 | 1000. | ||
448.2 | 1100. | ||
462.2 | 1200. | ||
474.2 | 1300. | ||
484.5 | 1400. | ||
493.4 | 1500. |
Phase change data
Go To: Top, Gas phase thermochemistry 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 527. ± 6. | K | AVG | N/A | Average of 15 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 308. | K | N/A | Kochetkov, Nifant'ev, et al., 1957 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 265.7 | K | N/A | Adkins and Davis, 1949 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 265.8 | K | N/A | Koelbel, 1949 | Uncertainty assigned by TRC = 1. K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
64.7 | 398. | GC | Lei, Chankalal, et al., 2002 | Based on data from 323. to 473. K.; AC |
69.3 | 284. | N/A | Sasse, Jose, et al., 1988 | Based on data from 269. to 398. K.; AC |
61.9 | 301. | A | Stephenson and Malanowski, 1987 | Based on data from 286. to 319. K.; AC |
56.7 | 408. | A | Stephenson and Malanowski, 1987 | Based on data from 393. to 565. K.; AC |
Gas phase ion energetics data
Go To: Top, Gas 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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
B - John E. Bartmess
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
<0.195 ± 0.061 | ECD | Wojnarovits and Foldiak, 1981 | EA is an upper limit: Chen and Wentworth, 1989. G3MP2B3 calculations indicate an EA of ca. -0.1 eV, anion unbound.; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.95 | PE | Klasinc, Kovac, et al., 1983 | LBLHLM |
7.95 | PE | Klasinc, Kovac, et al., 1983 | Vertical value; LBLHLM |
References
Go To: Top, Gas 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.
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Kochetkov, Nifant'ev, et al., 1957
Kochetkov, N.K.; Nifant'ev, E.E.; Nesmeyanov, A.N.,
Cyclic Acetals of β-Oxoaldehydes and Their Use in Synthesis of Alkylnaphthalenes,
Izv. Akad. Nauk S.S.S.R., 1957, 1957, 949-55. [all data]
Adkins and Davis, 1949
Adkins, H.; Davis, J.W.,
Catalytic Dehydrogenation of Hydroaromatic Compounds in Benzene II.,
J. Am. Chem. Soc., 1949, 71, 2955. [all data]
Koelbel, 1949
Koelbel, H.,
Alkylnaphthalenes as Lubricating-oil Models,
Brennst.-Chem., 1949, 30, 73-80. [all data]
Lei, Chankalal, et al., 2002
Lei, Ying Duan; Chankalal, Raymond; Chan, Anita; Wania, Frank,
Supercooled Liquid Vapor Pressures of the Polycyclic Aromatic Hydrocarbons,
J. Chem. Eng. Data, 2002, 47, 4, 801-806, https://doi.org/10.1021/je0155148
. [all data]
Sasse, Jose, et al., 1988
Sasse, Karim; Jose, Jacques; Merlin, Jean-Claude,
A static apparatus for measurement of low vapor pressures. Experimental results on high molecular-weight hydrocarbons,
Fluid Phase Equilibria, 1988, 42, 287-304, https://doi.org/10.1016/0378-3812(88)80065-7
. [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]
Wojnarovits and Foldiak, 1981
Wojnarovits, L.; Foldiak, G.,
Electron capture detection of aromatic hydrocarbons,
J. Chromatogr. Sci., 1981, 206, 511. [all data]
Chen and Wentworth, 1989
Chen, E.C.M.; Wentworth, W.E.,
Experimental Determination of Electron Affinities of Organic Molecules,
Mol. Cryst. Liq. Cryst., 1989, 171, 271. [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, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas EA Electron affinity Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.