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II.A.3. (XII.A.1.)

Listing of experimental geometry data for SiH2Cl2 (dichlorosilane)

Rotational Constants (cm-1)
See section I.F.4 to change rotational constant units
0.47149 0.08585 0.07447
Rotational Constants from 1976Wel/Ger:117
Calculated rotational constants for SiH2Cl2 (dichlorosilane).

Point Group C2v

Internal coordinates (distances (r) in Å) (angles (a) in degrees) (dihedrals (d) in degrees)
Description Value Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rSiH 1.480 1 2 JANAF +-0.015
rSiCl 2.033 1 4 JANAF +-0.003
aHSiH 111.3 2 1 3 JANAF +-0.7
aClSiCl 109.72 4 1 5 JANAF +-0.3
aHSiCl 108.95 2 1 4 JANAF by symmetry
picture of dichlorosilane

Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-Si 2
Si-Cl 2

Atom x (Å) y (Å) z (Å)
Si1 0.0000 0.0000 0.7623
H2 -1.2219 0.0000 1.5974
H3 1.2219 0.0000 1.5974
Cl4 0.0000 1.6625 -0.4079
Cl5 0.0000 -1.6625 -0.4079

Atom - Atom Distances (Å)
  Si1 H2 H3 Cl4 Cl5

Calculated geometries for SiH2Cl2 (dichlorosilane).

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squib reference DOI
1976Wel/Ger:117 R Wellington Davis, MCL Gerry "The Microeave Spectrum, Structure, Chlorine Nuclear Quadrupole Coupling Constants, Dipole Moment, and Centrifugal Distortion Constants of Dichlorosilane" J. Mol. Spectrosc. 60, 117-129, 1976 10.1016/0022-2852(76)90120-X
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.  

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