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All results from a given calculation for SiF3 (Silicon trifluoride radical)

using model chemistry: PBEPBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-585.654254
Energy at 298.15K-585.655226
HF Energy-585.654254
Nuclear repulsion energy174.191945
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 PBEPBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 844 805 34.41      
2 A1 385 367 42.98      
3 E 1008 961 94.03      
3 E 1008 961 94.01      
4 E 282 269 7.57      
4 E 282 269 7.56      

Unscaled Zero Point Vibrational Energy (zpe) 1904.1 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1815.5 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 PBEPBE/3-21G*
ABC
0.24024 0.24024 0.13222

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.385
F2 0.000 1.496 -0.200
F3 1.295 -0.748 -0.200
F4 -1.295 -0.748 -0.200

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.60601.60601.6060
F21.60602.59062.5906
F31.60602.59062.5906
F41.60602.59062.5906

picture of Silicon trifluoride radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 F3 107.520 F2 Si1 F4 107.520
F3 Si1 F4 107.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.751      
2 F -0.250      
3 F -0.250      
4 F -0.250      


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 0.971 0.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.773 0.000 0.000
y 0.000 -27.773 0.000
z 0.000 0.000 -24.514
Traceless
 xyz
x -1.629 0.000 0.000
y 0.000 -1.629 0.000
z 0.000 0.000 3.259
Polar
3z2-r26.517
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 2.953 0.000 0.000
y 0.000 2.953 0.000
z 0.000 0.000 2.175


<r2> (average value of r2) Å2
<r2> 80.221
(<r2>)1/2 8.957