Silane, dichlorodimethyl-
- Formula: C2H6Cl2Si
- Molecular weight: 129.061
- IUPAC Standard InChIKey: LIKFHECYJZWXFJ-UHFFFAOYSA-N
- CAS Registry Number: 75-78-5
- 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: Dichlorodimethylsilane; Dichlorodimethylsilicon; Dimethyldichlorosilane; Inerton Aw-dmcs; (CH3)2SiCl2; Dimethyldichlorsilane; Dimethyl-dichlorsilan; UN 1162
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Condensed phase thermochemistry data
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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 64.63 | cal/mol*K | N/A | Samorukov and Kostryukov, 1971 |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
40.99 | 298.15 | Samorukov and Kostryukov, 1971 | T = 21 to 299 K. Data deposited VINITI, No 2423-71, 17 December, 1970. Cp(liq) = 18.5676 + 0.06453T + 283310T-2 (198.99 to 300 K) cal/mol*K. |
Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 342.52 | K | N/A | Sacarescu, Marcu, et al., 1995 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 343.4 | K | N/A | PCR Inc., 1990 | BS |
Tboil | 343.18 | K | N/A | Rugina, Gaspar, et al., 1987 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 345. | K | N/A | McBride and Beachell, 1948 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 198.99 | K | N/A | Samorukov and Kostryukov, 1971, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 520.4 | K | N/A | Stepanov and Nozdrev, 1968 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 34.44 | atm | N/A | Stepanov and Nozdrev, 1968 | Uncertainty assigned by TRC = 0.1099 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.86 | mol/l | N/A | Stepanov and Nozdrev, 1968 | Uncertainty assigned by TRC = 0.03 mol/l; ultrasonic velocity measurements; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.53 | 316. | I | Jenkins and Chambers, 1954 | Based on data from 301. to 345. 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 |
---|---|---|---|---|
300.9 to 345.3 | 4.26273 | 1328. | -32. | Jenkins and Chambers, 1954 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.110 | 198.99 | Samorukov and Kostryukov, 1971 | DH |
2.11 | 199. | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
10.61 | 198.99 | Samorukov and Kostryukov, 1971 | DH |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, 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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.7 | PE | Green, Lappert, et al., 1971 | |
10.99 | PE | Green, Lappert, et al., 1971 | Vertical value |
References
Go To: Top, Condensed phase thermochemistry data, 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.
Samorukov and Kostryukov, 1971
Samorukov, O.P.; Kostryukov, V.N.,
Thermodynamics of organic derivatives of chlorosilanes. Low-temperature heat capacities, melting points, heats of fusion, and thermodynamic functions of the condensed phases of trichloromethylsilane and dichloromethylsilane,
Russ. J. Phys. Chem., 1971, 45, 747-748. [all data]
Sacarescu, Marcu, et al., 1995
Sacarescu, L.; Marcu, M.; Luchian, N.; Sacarescu, G.,
Vapor-Liquid Equilibria for Dichlorodimethylsilane + Heptane,
J. Chem. Eng. Data, 1995, 40, 71-3. [all data]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Rugina, Gaspar, et al., 1987
Rugina, T.; Gaspar, M.; Sacarescu, L.,
Liquid-vapor equilibrium for a binary system of dichlorodimethyl-silane with trichloromethylsilane, chloromethylsilane and silicontetrachloride.,
Rev. Chim. (Bucharest), 1987, 38, 680. [all data]
McBride and Beachell, 1948
McBride, J.J.; Beachell, H.C.,
The peroxide-catalyzed chlorination of trimethylchlorosilane and t-butyl chloride,
J. Am. Chem. Soc., 1948, 70, 2532. [all data]
Samorukov and Kostryukov, 1971, 2
Samorukov, O.P.; Kostryukov, V.N.,
Low temp. heat capacities melting points, heats of fusion, and thermodyna- mic functions of the condensed phases of trichloromethylsilane and dichloromethylsilane dichlorodimethylsilane,
Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 747-8. [all data]
Stepanov and Nozdrev, 1968
Stepanov, N.G.; Nozdrev, V.F.,
Physical Properties of Certain Organic Derivatives of Chlorosilane in the Critical Region,
Russ. J. Phys. Chem. (Engl. Transl.), 1968, 42, 1300-2. [all data]
Jenkins and Chambers, 1954
Jenkins, Arthur C.; Chambers, George F.,
Vapor Pressures of Silicon Compounds,
Ind. Eng. Chem., 1954, 46, 11, 2367-2369, https://doi.org/10.1021/ie50539a043
. [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]
Green, Lappert, et al., 1971
Green, M.C.; Lappert, M.F.; Pedley, J.B.; Schmidt, W.; Wilkins, B.T.,
Photoelectron spectra energy level trends in MenSiCl4-n and related series,
J. Organomet. Chem., 1971, 31, 55. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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