Dichlorosilane
- Formula: Cl2H2Si
- Molecular weight: 101.007
- IUPAC Standard InChI: InChI=1S/Cl2H2Si/c1-3-2/h3H2
- IUPAC Standard InChIKey: MROCJMGDEKINLD-UHFFFAOYSA-N
- CAS Registry Number: 4109-96-0
- Chemical structure:
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Gas 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -76.599 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1976 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 68.528 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1976 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1500. | 1500. to 6000. |
|---|---|---|
| A | 11.97520 | 25.04309 |
| B | 20.16000 | 0.386661 |
| C | -11.95130 | -0.070440 |
| D | 2.638911 | 0.004488 |
| E | -0.190528 | -3.035660 |
| F | -81.60569 | -90.89039 |
| G | 76.44630 | 89.77371 |
| H | -76.60000 | -76.60000 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1976 | Data last reviewed in December, 1976 |
Phase change data
Go To: Top, Gas phase thermochemistry 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 281.3 | 1.00 | PCR Inc., 1990 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 5.3 ± 0.2 | 290. to 350. | Vorotyntsev, Balabanov, et al., 1986 | AC |
Gas phase ion energetics data
Go To: Top, Gas 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 |
|---|---|---|---|
| 11.70 | PE | Chadwick, Cornford, et al., 1972 | Vertical value |
| 11.70 | PE | Frost, Herring, et al., 1971 | Vertical value |
| 11.64 ± 0.02 | PE | Cradock and Whiteford, 1971 | Vertical value |
References
Go To: Top, Gas 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Vorotyntsev, Balabanov, et al., 1986
Vorotyntsev, V.M.; Balabanov, V.V.; Shamrakov, D.A.,
Zh. Fiz. Khim., 1986, 60, 234. [all data]
Chadwick, Cornford, et al., 1972
Chadwick, D.; Cornford, A.B.; Frost, D.C.; Herring, F.G.; Katrib, A.; McDowell, C.A.; McLean, R.A.N.,
Photoelectron spectra of some dihalocompounds
in Electron spectroscopy, ed. D.A. Shirley (North-Holland Publixhing Co, Amsterdam), 1972, 453. [all data]
Frost, Herring, et al., 1971
Frost, D.C.; Herring, F.G.; Katrib, A.; McLean, R.A.N.; Drake, J.E.; Westwood, N.P.C.,
Photoelectron spectra and bonding in some halosilanes,
Can. J. Chem., 1971, 49, 4033. [all data]
Cradock and Whiteford, 1971
Cradock, S.; Whiteford, R.A.,
Photo-electron spectra of the mono and dihalo silanes and germanes,
J. Chem. Soc. Faraday Trans., 1971, 67, 3425. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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