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All results from a given calculation for SiH3Cl (chlorosilane)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-747.990616
Energy at 298.15K 
HF Energy-747.990616
Nuclear repulsion energy86.343540
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 mPW1PW91/3-21G*
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 2306 2190 59.57 193.68 0.01 0.03
2 A1 971 922 303.41 17.15 0.73 0.85
3 A1 564 535 66.72 9.55 0.32 0.48
4 E 2320 2203 118.53 61.19 0.75 0.86
4 E 2320 2203 118.55 61.19 0.75 0.86
5 E 956 908 65.10 22.47 0.75 0.86
5 E 956 908 65.10 22.47 0.75 0.86
6 E 673 639 33.34 12.19 0.75 0.86
6 E 673 639 33.34 12.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5869.2 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 5573.4 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 mPW1PW91/3-21G*
ABC
2.83293 0.22180 0.22180

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 -0.984
Cl2 0.000 0.000 1.068
H3 0.000 1.403 -1.460
H4 1.215 -0.701 -1.460
H5 -1.215 -0.701 -1.460

Atom - Atom Distances (Å)
  Si1 Cl2 H3 H4 H5
Si12.05281.48131.48131.4813
Cl22.05282.89142.89142.8914
H31.48132.89142.42992.4299
H41.48132.89142.42992.4299
H51.48132.89142.42992.4299

picture of chlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 Si1 H3 108.723 Cl2 Si1 H4 108.723
Cl2 Si1 H5 108.723 H3 Si1 H4 110.209
H3 Si1 H5 110.209 H4 Si1 H5 110.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.453      
2 Cl -0.318      
3 H -0.045      
4 H -0.045      
5 H -0.045      


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 -1.696 1.696
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.882 0.000 0.000
y 0.000 -27.882 0.000
z 0.000 0.000 -27.360
Traceless
 xyz
x -0.261 0.000 0.000
y 0.000 -0.261 0.000
z 0.000 0.000 0.522
Polar
3z2-r21.044
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.719 0.000 0.000
y 0.000 3.719 0.000
z 0.000 0.000 5.387


<r2> (average value of r2) Å2
<r2> 62.576
(<r2>)1/2 7.910