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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1670.644365
Energy at 298.15K-1670.646011
Nuclear repulsion energy337.293324
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 B3PW91/6-31G(2df,p)
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 2294 2205 57.77      
2 A1 491 472 25.82      
3 A1 248 239 7.31      
4 E 800 770 129.71      
4 E 800 770 129.72      
5 E 598 575 142.60      
5 E 598 575 142.61      
6 E 170 164 1.84      
6 E 170 164 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 3085.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 2966.1 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 B3PW91/6-31G(2df,p)
ABC
0.08091 0.08091 0.04339

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.500
H2 0.000 0.000 1.971
Cl3 0.000 1.924 -0.176
Cl4 1.667 -0.962 -0.176
Cl5 -1.667 -0.962 -0.176

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.47082.03962.03962.0396
H21.47082.88312.88312.8831
Cl32.03962.88313.33313.3331
Cl42.03962.88313.33313.3331
Cl52.03962.88313.33313.3331

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.357 H2 Si1 Cl4 109.357
H2 Si1 Cl5 109.357 Cl3 Si1 Cl4 109.585
Cl3 Si1 Cl5 109.585 Cl4 Si1 Cl5 109.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.370      
2 H 0.046      
3 Cl -0.139      
4 Cl -0.139      
5 Cl -0.139      


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 0.846 0.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.003 0.000 0.000
y 0.000 -51.003 0.000
z 0.000 0.000 -49.016
Traceless
 xyz
x -0.994 0.000 0.000
y 0.000 -0.994 0.000
z 0.000 0.000 1.987
Polar
3z2-r23.974
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 8.833 0.000 0.000
y 0.000 8.833 0.000
z 0.000 0.000 6.641


<r2> (average value of r2) Å2
<r2> 229.264
(<r2>)1/2 15.141