1,3-Disilacyclobutane, 1,1,3,3-tetramethyl-
- Formula: C6H16Si2
- Molecular weight: 144.3622
- IUPAC Standard InChIKey: JKDNLUGVHCNUTB-UHFFFAOYSA-N
- CAS Registry Number: 1627-98-1
- 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: 1,1,3,3-Tetramethyl-1,3-disilacyclobutane
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Phase change data
Go To: Top, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 266.02 | K | N/A | Dzhafarov, Guseinov, et al., 1973 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 8.77 ± 0.26 | kcal/mol | I | Shmyreva, Sakharovskaya, et al., 1974 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.4359 | 390.93 | Guseinov, Karasharli, et al., 1975 | DH |
9.44 | 391. | Guseinov, Karasharli, et al., 1975, 2 | AC |
Entropy of vaporization
ΔvapS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
21.83 | 390.93 | Guseinov, Karasharli, et al., 1975 | DH |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.4520 | 266.02 | Guseinov, Karasharli, et al., 1975 | DH |
2.4520 | 266.02 | Dzhafarov, Guseinov, et al., 1973 | DH |
2.452 | 266. | Domalski and Hearing, 1996 | See also Guseinov, Karasharli, et al., 1975, 2.; AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.221 | 266.02 | Guseinov, Karasharli, et al., 1975 | DH |
9.216 | 266.02 | Dzhafarov, Guseinov, et al., 1973 | DH |
Gas phase ion energetics data
Go To: Top, 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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.56 ± 0.07 | EI | Pitt, Habercom, et al., 1968 | RDSH |
References
Go To: Top, 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.
Dzhafarov, Guseinov, et al., 1973
Dzhafarov, O.I.; Guseinov, Z.A.; Karasharli, K.A.; Zeinalov, T.D.,
Heat capacity of tetramethyldisiletan at low temperatures,
Zhur. Fiz. Khim., 1973, 47, 2448. [all data]
Shmyreva, Sakharovskaya, et al., 1974
Shmyreva, G.O.; Sakharovskaya, G.B.; Golosova, R.M.; Filippov, G.G.; Volnina, E.A.; Burdasov, E.N.; Gusel'nikov, L.E.,
Russ. J. Phys. Chem., 1974, 48, 1699. [all data]
Guseinov, Karasharli, et al., 1975
Guseinov, Z.A.; Karasharli, K.A.; Dzhafarov, O.I.; Nurullaev, G.G.; Nametkin, N.S.; Gusel'nikov, L.E.; Volnina, F.A.; Burdasov, E.N.; Vdovin, V.M.,
Thermodynamic parameters of some cyclic and bridging carbosilanes,
Dokl.Akad. Nauk, 1975, SSSR 222, 1369-1372. [all data]
Guseinov, Karasharli, et al., 1975, 2
Guseinov, A.Z.; Karasharli, K.A.; Dzhafarov, O.I.; Nurullaev, G.G.; Nametkin, N.S.; Gusel'nikov, L.E.; Volnina, E.A.; Burdasov, E.N.; Vdovin, V.N.,
Dokl. Akad. Nauk SSSR, 1975, 222, 1369. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Pitt, Habercom, et al., 1968
Pitt, C.G.; Habercom, M.S.; Bursey, M.M.; Rogerson, P.F.,
The electronic absorption and ionization potentials of carbosilanes. The question of 1,3(d-d) interaction in the excited state,
J. Organometal. Chem., 1968, 15, 359. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ΔvapS Entropy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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