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Trichlorosilane

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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
Deltafgas-496.22kJ/molReviewChase, 1998Data last reviewed in December, 1976
Quantity Value Units Method Reference Comment
gas,1 bar313.71J/mol*KReviewChase, 1998Data 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 (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. - 1000.1000. - 6000.
A 64.28214104.3544
B 85.314272.102059
C -72.09409-0.428952
D 23.430320.029935
E -0.754664-5.968392
F -521.1214-542.8447
G 364.8201417.3879
H -496.2224-496.2224
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1976 Data last reviewed in December, 1976

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil304. - 305.KN/APCR Inc., 1990BS
Tboil305.0KN/ATaylor and Walten, 1944Uncertainty assigned by TRC = 0.5 K; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
24.9314.N/ALapidus, Nisel'son, et al., 1967Based on data from 303. - 325. K.; AC
27.2290.IJenkins and Chambers, 1954Based on data from 275. - 305. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference
275.3 - 304.84.216091170.-27.Jenkins and Chambers, 1954

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Reaction 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.

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. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Cl3Si- + Hydrogen cation = Trichlorosilane

By formula: Cl3Si- + H+ = HCl3Si

Quantity Value Units Method Reference Comment
Deltar<1510. ± 10.kJ/molD-EAPabst, Margrave, et al., 1977gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV.
Quantity Value Units Method Reference Comment
Deltar<1478. ± 10.kJ/molH-TSPabst, Margrave, et al., 1977gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV.

IR Spectrum

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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 by: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner Copyright (C) 1987 by the Coblentz Society
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CORNING CORP.
Source reference COBLENTZ NO. 05749
Date 1968/06/25
Name(s) trichlorosilane
State SOLUTION (5% CCl4 FOR 3800-1300, 4% CS2 FOR 1300-650, AND 5% CCl4 FOR 650-250)
MORE THAN 99.5% PURE
Instrument PERKIN-ELMER 521 (GRATING)
Instrument parameters FILTERS AT 3150, 2500, 2000, 1150, 700, 410. GRATING CHANGES: 2000, 630
Path length 0.011 CM, 0.010 CM, AND 0.010 CM
Resolution 2
Boiling point 31 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Vibrational and/or electronic energy levels

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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 by: Takehiko Shimanouchi

Symmetry:   C3nu     Symmetry Number sigma = 3


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 SiH str 2261  B 2260.9 S gas 2258 p liq.
a1 2 SiCl3 s-str 499  B 498.6 S gas 489 p liq.
a1 3 SiCl3 s-deform 254  B 253.7 M gas 250 p liq.
e 4 SiH bend 811  B 810.8 VS gas 799 dp liq.
e 5 SiCl3 d-str 600  B 600.1 VS gas 587 dp liq.
e 6 SiCl3 d-deform 176  B 175.5 M gas 179 dp liq.

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
pPolarized
dpDepolarized
B1~3 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, 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]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Taylor and Walten, 1944
Taylor, A.G.; Walten, B.V.D.G., Trimethyl silane and trimethyl silicon chloride, J. Am. Chem. Soc., 1944, 66, 842-843. [all data]

Lapidus, Nisel'son, et al., 1967
Lapidus, I.I.; Nisel'son, L.A.; Karateeva, A.A., Russ. J. Phys. Chem., 1967, 41, 2, 241. [all data]

Jenkins and Chambers, 1954
Jenkins, Arthur C.; Chambers, George F., Vapor Pressures of Silicon Compounds, Ind. Eng. Chem., 1954, 46, 11, 2367-2369, https://doi.org/10.1021/ie50539a043 . [all data]

Pabst, Margrave, et al., 1977
Pabst, R.E.; Margrave, J.L.; Franklin, J.L., Electron impact studies of the tetrachlorides and tetrabromides of silicon and germanium, Int. J. Mass Spectrom. Ion Phys., 1977, 25, 361. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]


Notes

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