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:
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. - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Data at other public NIST sites:
- Options:
Gas phase thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, 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 | -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.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | 298. - 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, 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, 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, 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.