Selenophene
- Formula: C4H4Se
- Molecular weight: 131.03
- IUPAC Standard InChIKey: MABNMNVCOAICNO-UHFFFAOYSA-N
- CAS Registry Number: 288-05-1
- Chemical structure:
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 9.1 ± 0.2 | kcal/mol | C | Voronkov, Klyuchnikov, et al., 1989 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.75 | 272. | Dykyj, Svoboda, et al., 1999 | Based on data from 234. to 300. K.; AC |
8.13 | 249. | Stull, 1947 | Based on data from 234. to 387. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
234. to 387.5 | 3.75405 | 1331.417 | -33.354 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
11.3 | 225. | Milazzo and Paoloni, 1951 | Based on data from 208. to 243. K.; AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0727 | 122.7 | crystaline, III | crystaline, II | Dworkin and Szwarc, 1991 | DH |
0.2643 | 192.8 | crystaline, II | crystaline, I | Dworkin and Szwarc, 1991 | DH |
1.096 | 240.2 | crystaline, I | liquid | Dworkin and Szwarc, 1991 | DH |
0.168 | 125.54 | crystaline, I3 | crystaline, I2 | Dworkin and Szwarc, 1991 | Metastable phase.; DH |
0.2397 | 155.4 | crystaline, I2 | crystaline, I1 | Dworkin and Szwarc, 1991 | Metastable phase.; DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.593 | 122.7 | crystaline, III | crystaline, II | Dworkin and Szwarc, 1991 | DH |
1.37 | 192.8 | crystaline, II | crystaline, I | Dworkin and Szwarc, 1991 | DH |
4.57 | 240.2 | crystaline, I | liquid | Dworkin and Szwarc, 1991 | DH |
1.34 | 125.54 | crystaline, I3 | crystaline, I2 | Dworkin and Szwarc, 1991 | Metastable; DH |
1.54 | 155.4 | crystaline, I2 | crystaline, I1 | Dworkin and Szwarc, 1991 | Metastable; DH |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.955 | PE | Reineck, Nohre, et al., 1983 | LBLHLM |
8.776 | S | Bavia, Zauli, et al., 1975 | LLK |
8.96 | CTS | Aloisi, Santini, et al., 1975 | LLK |
9.01 ± 0.05 | EI | Linda, Marino, et al., 1971 | LLK |
9.01 ± 0.05 | EI | Linda, Marino, et al., 1969 | RDSH |
8.92 | PE | Fringuelli, Marino, et al., 1976 | Vertical value; LLK |
8.80 | PE | Schafer, Schweig, et al., 1973 | Vertical value; LLK |
≤8.92 | PE | Distefano, Pignataro, et al., 1973 | Vertical value; LLK |
Mass spectrum (electron ionization)
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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | F.Fringuelli ET AL.J.Heterocycl.Chem.,15,137(1978) |
NIST MS number | 281119 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Voronkov, Klyuchnikov, et al., 1989
Voronkov, M.G.; Klyuchnikov, V.A.; Kolabin, S.N.; Shvets, G.N.; Varushin, P.I.; Deryagina, E.N.; Korchevin, N.A.; Tsvetnitskaya, S.I.,
Thermochemical properties of dialkyl chalcogenides and dichalcogenides RMnR (M = sulfur, selenium, tellurium; n = 1, 2),
Dokl. Akad. Nauk SSSR, Phys. Chem., 1989, 307, 5, 1139. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Milazzo and Paoloni, 1951
Milazzo, G.; Paoloni, L.,
Ann. Chim. (Rome), 1951, 41, 673. [all data]
Dworkin and Szwarc, 1991
Dworkin, A.; Szwarc, H.,
Thermodynamic evidence for stable and metastable phases in crystalline selenophene, C. R. l'Academie Sci.,
Ser. II Univers, 1991, 312(7), 701-704. [all data]
Reineck, Nohre, et al., 1983
Reineck, I.; Nohre, C.; Lodin, P.; Maripuu, R.; Lindberg, B.; Karlsson, L.; Siegbahn, K.; Hornfeldt, A.-B.; Gronowitz, S.,
Electronic and vibrational structure of 2-substituted selenophenes studied by He(I) photoelectron spectroscopy,
Chem. Scr., 1983, 22, 209. [all data]
Bavia, Zauli, et al., 1975
Bavia, M.; Zauli, C.; Fusina, L.,
Rydberg states in selenophen,
Mol. Phys., 1975, 30, 1289. [all data]
Aloisi, Santini, et al., 1975
Aloisi, G.; Santini, S.; Savelli, G.,
Molecular complexes of heteroaromatic five membered ring compounds with tetracyanoethylene. Charge transfer spectra, equilibrium constants and ionization potentials of the donors,
J. Chem. Soc. Faraday Trans. 1, 1975, 70, 2045. [all data]
Linda, Marino, et al., 1971
Linda, P.; Marino, G.; Pignataro, S.,
A comparison of sensitivities to substituent effects of five- membered heteroaromatic rings in gas phase ionization,
J. Chem. Soc. B, 1971, 1585. [all data]
Linda, Marino, et al., 1969
Linda, P.; Marino, G.; Pignataro, S.,
Ionization potentials and relative rates of electrophilic substitution in five-membered heteroaromatic rings,
Ric. Sci., 1969, 39, 666. [all data]
Fringuelli, Marino, et al., 1976
Fringuelli, F.; Marino, G.; Taticchi, A.; Distefano, G.; Colonna, F.P.; Pignataro, S.,
Photoelectron spectra of the α-substituted derivatives of furan, thiophen, selenophen, and tellurophen. A comparative study of the molecular orbital energies,
J. Chem. Soc. Perkin Trans. 2, 1976, 276. [all data]
Schafer, Schweig, et al., 1973
Schafer, W.; Schweig, A.; Gronowitz, S.; Taticchi, A.; Fringuelli, F.,
Reversal in the sequence of two highest occupied molecular orbitals in the series thiophen, selenophen, and tellurophen,
J. Chem. Soc. Chem. Commun., 1973, 541. [all data]
Distefano, Pignataro, et al., 1973
Distefano, G.; Pignataro, S.; Innorta, G.; Fringuelli, F.; Marino, G.; Taticchi, A.,
Ionization energies of selenophen, tellurophen and some of their derivatives,
Chem. Phys. Lett., 1973, 22, 132. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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