Trichlorosilyl
- Formula: Cl3Si
- Molecular weight: 134.445
- IUPAC Standard InChI: InChI=1S/Cl3Si/c1-4(2)3
- IUPAC Standard InChIKey: PPDADIYYMSXQJK-UHFFFAOYSA-N
- CAS Registry Number: 19165-34-5
- Chemical structure:
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Gas phase thermochemistry 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -390.37 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1977 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 318.13 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1977 |
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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 6000. |
|---|---|
| A | 81.59679 |
| B | 1.315438 |
| C | -0.355645 |
| D | 0.030306 |
| E | -1.020295 |
| F | -418.1720 |
| G | 410.7634 |
| H | -390.3676 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1977 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry 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: Marilyn E. Jacox
State: H
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 43700 | T | gas | Irikura, Johnson, et al., 1992 | ||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| 2 | Umbrella | 282 ± 30 | gas | MPI | Irikura, Johnson, et al., 1992 | ||
State: G
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 43700 | T | gas | Irikura, Johnson, et al., 1992 | ||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| 2 | Umbrella | 261 ± 15 | gas | MPI | Irikura, Johnson, et al., 1992 | ||
State: F
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 43700 | T | gas | Irikura, Johnson, et al., 1992 | ||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| 2 | Umbrella | 262 ± 16 | gas | MPI | Irikura, Johnson, et al., 1992 | ||
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a1 | 1 | SiCl stretch | 470 | m | Ar | IR | Jacox and Milligan, 1968 Miller and Andrews, 1981 |
| e | 3 | SiCl stretch | 582 | vs | Ar | IR | Jacox and Milligan, 1968 Miller and Andrews, 1981 |
Additional references: Jacox, 1994, page 218; Leray and Roncin, 1965
Notes
| m | Medium |
| vs | Very strong |
| T | Tentative assignment or approximate value |
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, NIST Free Links, 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]
Irikura, Johnson, et al., 1992
Irikura, K.K.; Johnson, R.D., III; Hudgens, J.W.,
Electronic spectrum of the trichlorosilyl radical,
J. Phys. Chem., 1992, 96, 11, 4306, https://doi.org/10.1021/j100190a038
. [all data]
Jacox and Milligan, 1968
Jacox, M.E.; Milligan, D.E.,
Matrix-Isolation Study of the Vacuum-Ultraviolet Photolysis of Trichlorosilane. The Infrared Spectrum of the Free Radical SiCl3,
J. Chem. Phys., 1968, 49, 7, 3130, https://doi.org/10.1063/1.1670560
. [all data]
Miller and Andrews, 1981
Miller, J.H.; Andrews, L.,
Matrix spectroscopy of the argon resonance photolysis products of group IV chlorides,
J. Mol. Struct., 1981, 77, 1-2, 65, https://doi.org/10.1016/0022-2860(81)85267-2
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Leray and Roncin, 1965
Leray, N.; Roncin, J.,
Hyperfine Interaction of the Chlorine Nucleus in a Solid Matrix,
J. Chem. Phys., 1965, 42, 2, 800, https://doi.org/10.1063/1.1696018
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, NIST Free Links, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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