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All results from a given calculation for SiH2Cl2 (dichlorosilane)

using model chemistry: B2PLYP=FULLultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-311G*
 hartrees
Energy at 0K-1210.840927
Energy at 298.15K 
HF Energy-1210.659808
Nuclear repulsion energy190.950959
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2324 2324 68.60      
2 A1 978 978 148.31      
3 A1 522 522 52.79      
4 A1 193 193 4.38      
5 A2 738 738 0.00      
6 B1 2339 2339 91.15      
7 B1 609 609 49.29      
8 B2 909 909 321.79      
9 B2 581 581 152.08      

Unscaled Zero Point Vibrational Energy (zpe) 4596.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4596.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-311G*
ABC
0.47045 0.08365 0.07288

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.765
H2 -1.225 0.000 1.572
H3 1.225 0.000 1.572
Cl4 0.000 1.685 -0.407
Cl5 0.000 -1.685 -0.407

Atom - Atom Distances (Å)
  Si1 H2 H3 Cl4 Cl5
Si11.46701.46702.05252.0525
H21.46702.44972.87372.8737
H31.46702.44972.87372.8737
Cl42.05252.87372.87373.3694
Cl52.05252.87372.87373.3694

picture of dichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 H3 113.214 H2 Si1 Cl4 108.323
H2 Si1 Cl5 108.323 H3 Si1 Cl4 108.323
H3 Si1 Cl5 108.323 Cl4 Si1 Cl5 110.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.680      
2 H -0.053      
3 H -0.053      
4 Cl -0.288      
5 Cl -0.288      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.740 1.740
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.972 0.000 0.000
y 0.000 -43.725 0.000
z 0.000 0.000 -38.804
Traceless
 xyz
x 1.293 0.000 0.000
y 0.000 -4.338 0.000
z 0.000 0.000 3.044
Polar
3z2-r26.089
x2-y23.754
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.869 0.000 0.000
y 0.000 7.441 0.000
z 0.000 0.000 5.787


<r2> (average value of r2) Å2
<r2> 143.784
(<r2>)1/2 11.991