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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-1667.935710
Energy at 298.15K-1667.937235
Nuclear repulsion energy322.274500
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/SDD
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 2444 2201 64.31      
2 A1 451 406 44.95      
3 A1 234 211 28.58      
4 E 836 753 215.15      
4 E 836 753 215.15      
5 E 556 501 130.95      
5 E 556 501 130.95      
6 E 163 146 7.41      
6 E 163 146 7.41      

Unscaled Zero Point Vibrational Energy (zpe) 3119.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 2808.6 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/SDD
ABC
0.07381 0.07381 0.03963

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.538
H2 0.000 0.000 1.994
Cl3 0.000 2.014 -0.187
Cl4 1.744 -1.007 -0.187
Cl5 -1.744 -1.007 -0.187

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.45582.14012.14012.1401
H21.45582.96812.96812.9681
Cl32.14012.96813.48783.4878
Cl42.14012.96813.48783.4878
Cl52.14012.96813.48783.4878

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.792 H2 Si1 Cl4 109.792
H2 Si1 Cl5 109.792 Cl3 Si1 Cl4 109.148
Cl3 Si1 Cl5 109.148 Cl4 Si1 Cl5 109.148
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.177      
2 H -0.096      
3 Cl -0.361      
4 Cl -0.361      
5 Cl -0.361      


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 2.487 2.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.899 0.000 0.000
y 0.000 -58.899 0.000
z 0.000 0.000 -50.676
Traceless
 xyz
x -4.112 0.000 0.000
y 0.000 -4.112 0.000
z 0.000 0.000 8.223
Polar
3z2-r216.446
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 7.073 0.000 0.000
y 0.000 7.073 0.000
z 0.000 0.000 4.245


<r2> (average value of r2) Å2
<r2> 251.679
(<r2>)1/2 15.864