Silane, methylenebis[trimethyl-
- Formula: C7H20Si2
- Molecular weight: 160.4047
- IUPAC Standard InChIKey: GYIODRUWWNNGPI-UHFFFAOYSA-N
- CAS Registry Number: 2117-28-4
- 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: 2,4-Disilapentane, 2,2,4,4-tetramethyl-; Bis(trimethylsilyl)methane; Methylenebis[trimethylsilane]; Silane, methylenebis*trimethyl-
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Phase change data
Go To: Top, 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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 140.70 | K | N/A | Guseinov and Karasharli, 1982 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 573.9 | K | N/A | McLure and Neville, 1982 | Uncertainty assigned by TRC = 0.3 K; Visual, TE, PG; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 19.64 | atm | N/A | McLure and Neville, 1982 | Uncertainty assigned by TRC = 0.20 atm; Visual, TE, PG; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.644 | l/mol | N/A | McLure and Neville, 1982 | Uncertainty assigned by TRC = 0.0064 l/mol; Visual, TE, PG; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 1.55 | mol/l | N/A | McLure and Neville, 1982 | Uncertainty assigned by TRC = 0.0155 mol/l; Visual, TE, PG; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.6200 | 460.58 | N/A | Guseinov, Karasharli, et al., 1975 | DH |
9.63 ± 0.07 | 365. | QM | Guseinov, Kuliev, et al., 1975 | Based on data from 323. to 407. K. See also Guseinov, Karasharli, et al., 1975, 2.; AC |
Entropy of vaporization
ΔvapS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
23.66 | 460.58 | Guseinov, Karasharli, et al., 1975 | DH |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.6561 | 140.70 | Guseinov and Karasharli, 1982, 2 | DH |
2.6561 | 140.70 | Guseinov, Karasharli, et al., 1975 | DH |
2.655 | 140.7 | Domalski and Hearing, 1996 | See also Guseinov, Karasharli, et al., 1975, 2.; AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
18.88 | 140.70 | Guseinov and Karasharli, 1982, 2 | DH |
18.88 | 140.70 | Guseinov, Karasharli, et al., 1975 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Guseinov and Karasharli, 1982
Guseinov, Z.A.; Karasharli, K.A.,
Heat capacity and thermodynamic functions of hexamethyldisilylmethane,
Azerb. Khim. Zh., 1982, 1982, 107. [all data]
McLure and Neville, 1982
McLure, I.A.; Neville, J.F.,
The critical temperatures and pressures of hexamethyldisilmethylene, octamethylcyclotetrasiloxane, and decamethylcyclpentasiloxane,
J. Chem. Thermodyn., 1982, 14, 385-8. [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, Kuliev, et al., 1975
Guseinov, A.Z.; Kuliev, A.A.; Karasharli, K.A.; Dzhafarov, O.I.,
Azerb. Khim. Zh., 1975, 72. [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]
Guseinov and Karasharli, 1982, 2
Guseinov, Z.A.; Karasharli, K.A.,
Heat capacity and thermodynamic functions of hexamethyldisilylmethane,
Azerb. Khim. Zhur., 1982, (4), 107-109. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tc Critical temperature Ttriple Triple point temperature Vc Critical volume ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapS Entropy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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