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All results from a given calculation for SiH2Cl2 (dichlorosilane)

using model chemistry: B3LYPultrafine/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-1211.301739
Energy at 298.15K 
HF Energy-1211.301739
Nuclear repulsion energy190.680162
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 B3LYPultrafine/aug-cc-pV(T+d)Z
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 2270 2270 61.77 221.66 0.04 0.08
2 A1 957 957 102.41 6.40 0.73 0.85
3 A1 512 512 41.50 16.99 0.04 0.08
4 A1 183 183 2.43 2.42 0.62 0.76
5 A2 709 709 0.00 4.45 0.75 0.86
6 B1 2285 2285 77.66 71.65 0.75 0.86
7 B1 594 594 30.34 1.19 0.75 0.86
8 B2 874 874 227.24 1.59 0.75 0.86
9 B2 570 570 138.52 3.26 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 B3LYPultrafine/aug-cc-pV(T+d)Z
ABC
0.46920 0.08341 0.07266

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.766
H2 -1.224 0.000 1.579
H3 1.224 0.000 1.579
Cl4 0.000 1.687 -0.408
Cl5 0.000 -1.687 -0.408

Atom - Atom Distances (Å)
  Si1 H2 H3 Cl4 Cl5
Si11.46921.46922.05522.0552
H21.46922.44752.87942.8794
H31.46922.44752.87942.8794
Cl42.05522.87942.87943.3744
Cl52.05522.87942.87943.3744

picture of dichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 H3 112.802 H2 Si1 Cl4 108.421
H2 Si1 Cl5 108.421 H3 Si1 Cl4 108.421
H3 Si1 Cl5 108.421 Cl4 Si1 Cl5 110.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.130      
2 H -0.226      
3 H -0.226      
4 Cl -0.339      
5 Cl -0.339      


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 1.255 1.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.372 0.000 0.000
y 0.000 -41.516 0.000
z 0.000 0.000 -38.160
Traceless
 xyz
x 0.466 0.000 0.000
y 0.000 -2.749 0.000
z 0.000 0.000 2.284
Polar
3z2-r24.568
x2-y22.143
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.955 0.000 0.000
y 0.000 9.576 0.000
z 0.000 0.000 7.838


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