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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-1670.943937
Energy at 298.15K-1670.945640
Nuclear repulsion energy337.727740
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 mPW1PW91/6-311G**
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 2327 2227 54.00      
2 A1 493 471 35.30      
3 A1 256 245 12.28      
4 E 811 776 160.13      
4 E 811 776 160.16      
5 E 597 572 164.85      
5 E 597 572 164.86      
6 E 181 173 2.85      
6 E 181 173 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 3126.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 2991.0 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 mPW1PW91/6-311G**
ABC
0.08111 0.08111 0.04350

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.499
H2 0.000 0.000 1.967
Cl3 0.000 1.922 -0.176
Cl4 1.664 -0.961 -0.176
Cl5 -1.664 -0.961 -0.176

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.46752.03702.03702.0370
H21.46752.87812.87812.8781
Cl32.03702.87813.32903.3290
Cl42.03702.87813.32903.3290
Cl52.03702.87813.32903.3290

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.345 H2 Si1 Cl4 109.345
H2 Si1 Cl5 109.345 Cl3 Si1 Cl4 109.597
Cl3 Si1 Cl5 109.597 Cl4 Si1 Cl5 109.597
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.759      
2 H -0.030      
3 Cl -0.243      
4 Cl -0.243      
5 Cl -0.243      


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 1.168 1.168
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.683 0.000 0.000
y 0.000 -53.683 0.000
z 0.000 0.000 -50.200
Traceless
 xyz
x -1.741 0.000 0.000
y 0.000 -1.741 0.000
z 0.000 0.000 3.483
Polar
3z2-r26.966
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 8.147 0.000 0.000
y 0.000 8.147 0.000
z 0.000 0.000 6.041


<r2> (average value of r2) Å2
<r2> 230.131
(<r2>)1/2 15.170