(E)-Stilbene
- Formula: C14H12
- Molecular weight: 180.2451
- IUPAC Standard InChIKey: PJANXHGTPQOBST-VAWYXSNFSA-N
- CAS Registry Number: 103-30-0
- 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. - Stereoisomers:
- Other names: Benzene, 1,1'-(1,2-ethenediyl)bis-, (E)-; Stilbene, (E)-; (E)-1,2-Diphenylethylene; trans-α,β-Diphenylethylene; trans-Stilbene; trans-1,2-Diphenylethene; trans-1,2-Diphenylethylene; (E)-1,2-Diphenylethene; Dibenzal, (E)-; Dibenzylidne, (E)-; 1,2-Diphenylethylene (trans); (1,2-Ethenediyl)-1,1'-bisbenzene, (E)-; Stilbene (trans); 1,trans-2-Diphenylethene; 1,trans-2-Diphenylethylene; trans-Diphenylethene; 1,2-Diphenylethene, (E)-; 1,1'-(1,2-Ethanediyl)bis[benzene], trans; Toluylene; t-Stilbene; trans-Bibenzal; trans-Bibenzylidene; Benzene, 1,1'-(1E)-1,2-ethenediylbis-; NSC 2069; 1,1'-(1,2-Ethanediyl)bis(benzene), (E)-
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, UV/Visible spectrum, 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: C14H12 + H2 = C14H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -77.78 ± 0.84 | kJ/mol | Chyd | Williams, 1942 | liquid phase; solvent: Acetic acid; Reanalyzed by Cox and Pilcher, 1970, Original value = -84.2 ± 1.5 kJ/mol; At 302 K |
By formula: C14H12 = C14H12
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 35. ± 23. | kJ/mol | Cpha | Herman and Goodman, 1989 | solid phase; solvent: Acetonitrile/water |
ΔrH° | 19.2 ± 0.4 | kJ/mol | Ciso | Saltiel, Ganapathy, et al., 1987 | gas phase; At 303.2-461.2 K |
By formula: C14H12 = C14H12
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -5.0 ± 0.4 | kJ/mol | Cm | Bastianelli, Caia, et al., 1991 | liquid phase; Thermal Isomerization |
ΔrH° | -12. ± 1. | kJ/mol | Ciso | Fischer, Muszkat, et al., 1968 | solid phase; solvent: Cyclohexane |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, UV/Visible spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
View reactions leading to C14H12+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.656 ± 0.001 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.390 ± 0.020 | LPES | Vogeler, Siegert, et al., 2011 | B |
<0.390 ± 0.061 | ECD | Wojnarovits and Foldiak, 1981 | (E) isomer. EA is an upper limit: Chen and Wentworth, 1989. G3MP2B3 calculations indicate an EA of ca. 0.4 eV; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.6558 ± 0.0005 | TE | Takahashi and Kimura, 1995 | LL |
7.70 ± 0.02 | PE | Maier and Turner, 1973 | LLK |
7.70 ± 0.03 | PI | Potapov, Kardash, et al., 1972 | LLK |
7.76 | PE | Dewar and Goodman, 1972 | LLK |
7.87 | PE | Kobayashi, Yokota, et al., 1975 | Vertical value; LLK |
7.90 ± 0.05 | PE | Distefano, Mazzucato, et al., 1975 | Vertical value; LLK |
7.91 ± 0.05 | PE | Goetz, Marschner, et al., 1974 | Vertical value; LLK |
UV/Visible spectrum
Go To: Top, Reaction 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 by: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
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Additional Data
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Source | Rodebush and Feldman, 1946 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 684 |
Instrument | Beckman DU |
Melting point | 123 |
Boiling point | 307; 166(12) |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Williams, 1942
Williams, R.B.,
Heats of catalytic hydrogenation in solution. I. Apparatus, technique, and the heats of hydrogenation of certain pairs of stereoisomers,
J. Am. Chem. Soc., 1942, 64, 1395-1404. [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]
Herman and Goodman, 1989
Herman, M.S.; Goodman, J.L.,
Determination of the enthalpy and reaction volume changes of organic photoreactions using photoacoustic calorimetry,
J. Am. Chem. Soc., 1989, 111, 1849-1854. [all data]
Saltiel, Ganapathy, et al., 1987
Saltiel, J.; Ganapathy, S.; Werking, C.,
The ΔH for thermal trans-stilbene/cis-stilbene isomerization. Do S0 and T1 potential energy curves cross?,
J. Phys. Chem., 1987, 91, 2755-2758. [all data]
Bastianelli, Caia, et al., 1991
Bastianelli, C.; Caia, V.; Cum, G.; Gallo, R.; Mancini, V.,
Thermal isomerization of photochemically synthesized (Z)-9-styrylacridines. An unusually high enthalpy of Z->E conversion for stilbene-like compounds,
J. Chem. Soc. Perkin Trans. 2, 1991, 679-683. [all data]
Fischer, Muszkat, et al., 1968
Fischer, G.; Muszkat, K.A.; Fischer, E.,
Thermodynamic equilibrium between cis- and trans-isomers in stilbene and some derivatives,
J. Chem. Soc. B, 1968, 1156-1158. [all data]
Vogeler, Siegert, et al., 2011
Vogeler, F.; Siegert, S.; Marian, C.M.; Weinkauf, R.,
T-1, T-2 State Energies and Electron Affinities of Small alpha,omega-Diphenylpolyenes Investigated by Anion Photodetachment Photoelectron Spectroscopy and Excited-State Theory,
Chemphyschem, 2011, 12, 10, 1948-1956, https://doi.org/10.1002/cphc.201001083
. [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]
Takahashi and Kimura, 1995
Takahashi, M.; Kimura, K.,
ZEKE Photoelectron spectra of trans-stilbene in the S1 state,
J. Phys. Chem., 1995, 99, 1628. [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]
Potapov, Kardash, et al., 1972
Potapov, V.K.; Kardash, I.E.; Sorokin, V.V.; Sokolov, S.A.; Evlasheva, T.I.,
Photoionization of heteroaromatic compounds,
Khim. Vys. Energ., 1972, 6, 392. [all data]
Dewar and Goodman, 1972
Dewar, M.J.S.; Goodman, D.W.,
Photoelectron spectra of molecules. Part 5.--Polycyclic aromatic hydrocarbons,
J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1784. [all data]
Kobayashi, Yokota, et al., 1975
Kobayashi, T.; Yokota, K.; Nagakura, S.,
Photoelectron spectra of the cis- trans-isomers of some ethylene derivatives,
Bull. Chem. Soc. Jpn., 1975, 48, 412. [all data]
Distefano, Mazzucato, et al., 1975
Distefano, G.; Mazzucato, U.; Modelli, A.; Pignataro, S.; Orlandi, G.,
Photoelectron (He I) spectroscopic study of styrylpyridines,
J. Chem. Soc. Faraday Trans. 2, 1975, 71, 1583. [all data]
Goetz, Marschner, et al., 1974
Goetz, H.; Marschner, F.; Juds, H.,
Zur n-pi Wechselwirkung im Benzalanilin,
Tetrahedron, 1974, 30, 1133. [all data]
Rodebush and Feldman, 1946
Rodebush, W.H.; Feldman, I.,
Ultraviolet absorption spectra of organic molecules. III. Mechanical interference of substituent groups with resonance configurations,
J. Am. Chem. Soc., 1946, 68, 896-899. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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