Silicon tetrachloride
- Formula: Cl4Si
- Molecular weight: 169.898
- IUPAC Standard InChIKey: FDNAPBUWERUEDA-UHFFFAOYSA-N
- CAS Registry Number: 10026-04-7
- 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: Silane, tetrachloro-; Silicon chloride (SiCl4); Tetrachlorosilane; Tetrachlorosilicon; SiCl4; Silicon chloride; Silicon(IV) chloride; Chlorid kremicity; Extrema; Silicio(tetracloruro di); Siliciumtetrachlorid; Siliciumtetrachloride; Silicium(tetrachlorure de); Tetrachlorure de silicium; UN 1818; SIC-L(TM)
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Gas phase ion energetics data
Go To: Top, Ion clustering data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 11.79 ± 0.01 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.8 | PE | Potzinger, Ritter, et al., 1975 | LLK |
11.79 ± 0.01 | PE | Bassett and Lloyd, 1971 | LLK |
12.06 | PE | Frost, Herring, et al., 1971 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
SiCl+ | 19.20 ± 0.10 | ? | EI | Ihle, Wu, et al., 1978 | LLK |
SiCl2+ | 17.64 ± 0.10 | ? | EI | Ihle, Wu, et al., 1978 | LLK |
SiCl3+ | 12.6 ± 0.1 | Cl | EI | Potzinger, Ritter, et al., 1975 | LLK |
SiCl3+ | 12.48 ± 0.02 | Cl | EI | Steele, Nichols, et al., 1962 | RDSH |
Ion clustering data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: Cl- + Cl4Si = (Cl- • Cl4Si)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 25.1 ± 1.9 | kcal/mol | CIDT | Hao, Kaspar, et al., 2005 | gas phase |
ΔrH° | 24.2 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 17.6 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | gas phase |
Mass spectrum (electron ionization)
Go To: Top, Gas phase ion energetics data, Ion clustering 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 6548 |
References
Go To: Top, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Potzinger, Ritter, et al., 1975
Potzinger, P.; Ritter, A.; Krause, J.,
Massenspektrometrische Bestimmung von Bindungsenergien in siliciumorganischen Verbindungen,
Z. Naturforsch. A:, 1975, 30, 347. [all data]
Bassett and Lloyd, 1971
Bassett, P.J.; Lloyd, D.R.,
Photoelectron spectra of halides. Part I. Tetrafluorides and tetrachlorides of group IVB,
J. Chem. Soc., 1971, (A), 641. [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.,
(p→>d)π Bonding in halosilanes; evidence from photoelectron spectroscopy,
Chem. Phys. Lett., 1971, 10, 347. [all data]
Ihle, Wu, et al., 1978
Ihle, H.R.; Wu, C.H.; Miletic, M.; Zmbov, K.F.,
Mass spectrometric studies of gas species in the systems Si-Cl and Si-Li,
Adv. Mass Spectrom., 1978, 7, 670. [all data]
Steele, Nichols, et al., 1962
Steele, W.C.; Nichols, L.D.; Stone, F.G.A.,
The determination of silicon-carbon and silicon-hydrogen bond dissociation energies by electron impact,
J. Am. Chem. Soc., 1962, 84, 4441. [all data]
Hao, Kaspar, et al., 2005
Hao, C.T.; Kaspar, J.D.; Check, C.E.; Lobring, K.C.; Gilbert, T.M.; Sunderlin, L.S.,
Effect of substituents on the strength of A-Cl- (A = Si, Ge, and Sn) bonds in hypervalent systems: ACl(5)(-), ACl(4)F(-), and A(CH3)(3)Cl-2(-),
J. Phys. Chem. A, 2005, 109, 9, 2026-2034, https://doi.org/10.1021/jp040743x
. [all data]
Larson and McMahon, 1985
Larson, J.W.; McMahon, T.B.,
Fluoride and chloride affinities of the main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ICR halide exchange equilibria,
J. Am. Chem. Soc., 1985, 107, 766. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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