Methyl dichlorosilane
- Formula: CH4Cl2Si
- Molecular weight: 115.034
- IUPAC Standard InChI: InChI=1S/CH4Cl2Si/c1-4(2)3/h4H,1H3
- IUPAC Standard InChIKey: NWKBSEBOBPHMKL-UHFFFAOYSA-N
- CAS Registry Number: 20156-50-7
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, NIST Free Links, 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: John E. Bartmess
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Individual Reactions
CH3Cl2Si- + =
By formula: CH3Cl2Si- + H+ = CH4Cl2Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 436.8 ± 5.9 | kcal/mol | Acid | Jaeger and Henglein, 1968 | gas phase; From MeSiCl3, probably ca. 75 kcal too unstable |
Gas phase ion energetics 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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.47 | S | Causley and Russell, 1976 | LLK |
De-protonation reactions
CH3Cl2Si- + =
By formula: CH3Cl2Si- + H+ = CH4Cl2Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 436.8 ± 5.9 | kcal/mol | Acid | Jaeger and Henglein, 1968 | gas phase; From MeSiCl3, probably ca. 75 kcal too unstable; B |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Jaeger and Henglein, 1968
Jaeger, K.; Henglein, A.,
Die Bildung negativer Ionen aus SiCl4 und organischen Siliciumchloriden durch Elektronenstoss,
Z. Naturfor., 1968, 23A, 1122. [all data]
Causley and Russell, 1976
Causley, G.C.; Russell, B.R.,
Vacuum ultraviolet absorption spectra of dichlorosilane, dichloromethylsilane and dichlorodimethylsilane,
J. Electron Spectrosc. Relat. Phenom., 1976, 8, 71. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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