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All results from a given calculation for SiH2Cl2 (dichlorosilane)

using model chemistry: PBE1PBE/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/aug-cc-pCVTZ
 hartrees
Energy at 0K-1210.825288
Energy at 298.15K 
HF Energy-1210.825288
Nuclear repulsion energy191.768711
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 PBE1PBE/aug-cc-pCVTZ
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 2267 2267 59.05 222.99 0.04 0.08
2 A1 945 945 95.04 6.34 0.74 0.85
3 A1 528 528 41.80 15.76 0.04 0.08
4 A1 185 185 2.46 2.26 0.63 0.77
5 A2 704 704 0.00 4.48 0.75 0.86
6 B1 2281 2281 72.22 70.54 0.75 0.86
7 B1 591 591 29.81 1.10 0.75 0.86
8 B2 865 865 217.42 1.44 0.75 0.86
9 B2 590 590 133.73 3.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4477.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4477.2 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 PBE1PBE/aug-cc-pCVTZ
ABC
0.47148 0.08464 0.07366

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.763
H2 -1.229 0.000 1.578
H3 1.229 0.000 1.578
Cl4 0.000 1.675 -0.407
Cl5 0.000 -1.675 -0.407

Atom - Atom Distances (Å)
  Si1 H2 H3 Cl4 Cl5
Si11.47461.47462.04262.0426
H21.47462.45722.87302.8730
H31.47462.45722.87302.8730
Cl42.04262.87302.87303.3493
Cl52.04262.87302.87303.3493

picture of dichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 H3 112.851 H2 Si1 Cl4 108.459
H2 Si1 Cl5 108.459 H3 Si1 Cl4 108.459
H3 Si1 Cl5 108.459 Cl4 Si1 Cl5 110.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.978      
2 H -0.182      
3 H -0.182      
4 Cl -0.308      
5 Cl -0.308      


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 1.198 1.198
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.069 0.000 0.000
y 0.000 -40.985 0.000
z 0.000 0.000 -37.873
Traceless
 xyz
x 0.360 0.000 0.000
y 0.000 -2.514 0.000
z 0.000 0.000 2.154
Polar
3z2-r24.307
x2-y21.916
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.878 0.000 0.000
y 0.000 9.396 0.000
z 0.000 0.000 7.745


<r2> (average value of r2) Å2
<r2> 141.673
(<r2>)1/2 11.903