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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-1668.177826
Energy at 298.15K-1668.179602
Nuclear repulsion energy334.978586
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 HF/cc-pVDZ
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 2429 2205 75.69      
2 A1 509 462 41.11      
3 A1 260 236 14.44      
4 E 857 778 170.04      
4 E 857 778 170.04      
5 E 617 560 185.80      
5 E 617 560 185.80      
6 E 182 166 3.41      
6 E 182 166 3.41      

Unscaled Zero Point Vibrational Energy (zpe) 3254.6 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 2955.2 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 HF/cc-pVDZ
ABC
0.07981 0.07981 0.04287

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.512
H2 0.000 0.000 1.975
Cl3 0.000 1.936 -0.179
Cl4 1.677 -0.968 -0.179
Cl5 -1.677 -0.968 -0.179

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.46282.05582.05582.0558
H21.46282.89632.89632.8963
Cl32.05582.89633.35353.3535
Cl42.05582.89633.35353.3535
Cl52.05582.89633.35353.3535

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.647 H2 Si1 Cl4 109.647
H2 Si1 Cl5 109.647 Cl3 Si1 Cl4 109.295
Cl3 Si1 Cl5 109.295 Cl4 Si1 Cl5 109.295
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.812 0.580    
2 H -0.057 -0.050    
3 Cl -0.252 -0.177    
4 Cl -0.252 -0.177    
5 Cl -0.252 -0.177    


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 1.280 1.280
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.516 0.000 0.000
y 0.000 -53.516 0.000
z 0.000 0.000 -50.001
Traceless
 xyz
x -1.757 0.000 0.000
y 0.000 -1.757 0.000
z 0.000 0.000 3.514
Polar
3z2-r27.029
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 7.340 0.000 0.000
y 0.000 7.340 0.000
z 0.000 0.000 5.464


<r2> (average value of r2) Å2
<r2> 233.084
(<r2>)1/2 15.267