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Experimental data for SiH3Cl (chlorosilane)

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Other names
Chlorosilane; Silane, chloro-;
INChI INChIKey SMILES IUPAC name
InChI=1S/ClH3Si/c1-2/h2H3 KOPOQZFJUQMUML-UHFFFAOYSA-N [SiH3]Cl Chlorosilane
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -141.84 8.00 kJ mol-1 JANAF
Hfg(0K) enthalpy of formation -132.77 8.00 kJ mol-1 JANAF
Entropy (298.15K) entropy 250.76 0.21 J K-1 mol-1 JANAF
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 11.44   kJ mol-1 JANAF
Heat Capacity (298.15K) heat capacity 51.08   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 2201   Shim      
2 A1 949   Shim      
3 A1 551   Shim      
4 E 2195   Shim      
5 E 954   Shim      
6 E 664   Shim      

vibrational zero-point energy: 5663.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for SiH3Cl (chlorosilane).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
2.84470 0.22261 0.22261 1984Bur/Sch:349

Calculated rotational constants for SiH3Cl (chlorosilane).
Product of moments of inertia moments of inertia
33981.94amu3Å6   1.55602358204859E-115gm3 cm6
Geometric Data
picture of chlorosilane

Point Group C3v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rSiH 1.475   1 3 1998Kuc r0 value
rSiCl 2.051   1 2 1998Kuc r0 value
aHSiCl 108.295 2 1 3 1998Kuc a0 value
aHSiH 110.62 3 1 4 1998Kuc from symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
Si1 0.0000 0.0000 -0.9844
Cl2 0.0000 0.0000 1.0661
H3 0.0000 1.4004 -1.4474
H4 1.2128 -0.7002 -1.4474
H5 -1.2128 -0.7002 -1.4474

Atom - Atom Distances bond lengths
Distances in Å
  Si1 Cl2 H3 H4 H5
Si1   2.05061.47501.47501.4750
Cl2 2.0506   2.87742.87742.8774
H3 1.47502.8774   2.42562.4256
H4 1.47502.87742.4256   2.4256
H5 1.47502.87742.42562.4256  

Calculated geometries for SiH3Cl (chlorosilane).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
Cl2 Si1 H3 108.295 Cl2 Si1 H4 108.295
Cl2 Si1 H5 108.295 H3 Si1 H4 110.621
H3 Si1 H5 110.621 H4 Si1 H5 110.621

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-Si 3
Si-Cl 1

Connectivity
Atom 1 Atom 2
Si1 Cl2
Si1 H3
Si1 H4
Si1 H5
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
    11.610 0.050 webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C3v True       1.310 NSRDS-NBS10 ± 0.01 MW C3v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for SiH3Cl (chlorosilane).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C3v True       C3v 1 1

Calculated electric quadrupole moments for SiH3Cl (chlorosilane).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
9.113 0.148 2015Tha/Wu:144302

Calculated electric dipole polarizability for SiH3Cl (chlorosilane).

References
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squib reference DOI
1984Bur/Sch:349 H Burger, G Schippel, A Ruoff, H Essig, S Cradock "VIBRATIONAL-SPECTRA AND FORCE-CONSTANTS OF SYMMETRIC TOPS - ROVIBRATIONAL ANALYSIS OF 2-NU-6 AND 2-NU-6-NU-6 OF (H3SICL)-CL-35 AND (H3SICL)-CL-37, AND A NEW METHOD FOR THE DETERMINATION OF AO AND DKO" J. Mol. Spect. 106(2) 349-361, 1984 10.1016/0022-2852(84)90165-6
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
2015Tha/Wu:144302 AJ Thakkar, T Wu "How well do static electronic dipole polarizabilities from gas-phase experiments compare with density functional and MP2 computations?" J. Chem. Phys. 143, 144302 (2015) 10.1063/1.4932594
JANAF Chase, M.W., Jr.; Davies, C.A.; Downey, J.R., Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N., JANAF Thermochemical Tables (Third Edition), J. Phys. Chem. Ref. Data,Suppl. 1, 1985, 14, 1.  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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