(E)-Stilbene

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Reaction thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

(E)-Stilbene + Hydrogen = Bibenzyl

By formula: C14H12 + H2 = C14H14

Quantity Value Units Method Reference Comment
Δr-18.59 ± 0.20kcal/molChydWilliams, 1942liquid phase; solvent: Acetic acid; Reanalyzed by Cox and Pilcher, 1970, Original value = -20.14 ± 0.36 kcal/mol; At 302 K

(E)-Stilbene = cis-Stilbene

By formula: C14H12 = C14H12

Quantity Value Units Method Reference Comment
Δr8.4 ± 5.6kcal/molCphaHerman and Goodman, 1989solid phase; solvent: Acetonitrile/water
Δr4.59 ± 0.09kcal/molCisoSaltiel, Ganapathy, et al., 1987gas phase; At 303.2-461.2 K

cis-Stilbene = (E)-Stilbene

By formula: C14H12 = C14H12

Quantity Value Units Method Reference Comment
Δr-1.2 ± 0.1kcal/molCmBastianelli, Caia, et al., 1991liquid phase; Thermal Isomerization
Δr-2.9 ± 0.3kcal/molCisoFischer, Muszkat, et al., 1968solid phase; solvent: Cyclohexane

Gas phase ion energetics 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 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 ± 0.001eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
0.390 ± 0.020LPESVogeler, Siegert, et al., 2011B
<0.390 ± 0.061ECDWojnarovits 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 ± 0.0005TETakahashi and Kimura, 1995LL
7.70 ± 0.02PEMaier and Turner, 1973LLK
7.70 ± 0.03PIPotapov, Kardash, et al., 1972LLK
7.76PEDewar and Goodman, 1972LLK
7.87PEKobayashi, Yokota, et al., 1975Vertical value; LLK
7.90 ± 0.05PEDistefano, Mazzucato, et al., 1975Vertical value; LLK
7.91 ± 0.05PEGoetz, Marschner, et al., 1974Vertical value; LLK

Gas Chromatography

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
PackedSE-301755.Ramsey, Lee, et al., 1980He, Chromosorb G HP (80-100 mesh); Column length: 1.5 m; Program: not specified

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySP-1000185.2547.Kríz, Popl, et al., 1974N2; Column length: 50. m; Column diameter: 0.25 mm

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySE-521686.Carugno and Rossi, 1967N2, 1.8 K/min; Column length: 65. m; Column diameter: 0.3 mm; Tstart: 100. C; Tend: 300. C

Van Den Dool and Kratz RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-Innowax2536.Adamiec, Rossner, et al., 200130. m/0.25 mm/0.25 μm, N2, 5. K/min; Tstart: 60. C; Tend: 220. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
OtherMethyl Silicone1755.Ardrey and Moffat, 1981Program: not specified

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, 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]

Ramsey, Lee, et al., 1980
Ramsey, J.D.; Lee, T.D.; Osselton, M.D.; Moffat, A.C., Gas-liquid chromatographic retention indices of 296 non-drug substances on SE-30 or OV-1 likely to be encountered in toxicological analyses, J. Chromatogr., 1980, 184, 2, 185-206, https://doi.org/10.1016/S0021-9673(00)85641-1 . [all data]

Kríz, Popl, et al., 1974
Kríz, J.; Popl, M.; Mostecký, J., Retention indices of biphenyls and diphenylalkanes, J. Chromatogr., 1974, 97, 1, 3-13, https://doi.org/10.1016/S0021-9673(01)97577-6 . [all data]

Carugno and Rossi, 1967
Carugno, N.; Rossi, S., Evaluation of polynuclear hydrocarbons in cigarette smoke by glass capillary columns, J. Gas Chromatogr., 1967, 5, 2, 103-106, https://doi.org/10.1093/chromsci/5.2.103 . [all data]

Adamiec, Rossner, et al., 2001
Adamiec, J.; Rossner, J.; Velisek, J.; Cejpek, K.; Savel, J., Minor Strecker degradation products of phenylalanine and phenylglycine, Eur. Food Res. Technol., 2001, 212, 2, 135-140, https://doi.org/10.1007/s002170000234 . [all data]

Ardrey and Moffat, 1981
Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 1981, 220, 3, 195-252, https://doi.org/10.1016/S0021-9673(00)81925-1 . [all data]


Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References