return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: ROMP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at ROMP2/6-31G
 hartrees
Energy at 0K-587.645196
Energy at 298.15K-587.645963
HF Energy-587.224453
Nuclear repulsion energy166.175599
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 ROMP2/6-31G
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 753 753        
2 A1 357 357        
3 E 892 892        
3 E 892 892        
4 E 245 245        
4 E 245 245        

Unscaled Zero Point Vibrational Energy (zpe) 1692.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1692.0 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 ROMP2/6-31G
ABC
0.21864 0.21864 0.12047

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.406
F2 0.000 1.567 -0.211
F3 1.357 -0.783 -0.211
F4 -1.357 -0.783 -0.211

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.68391.68391.6839
F21.68392.71402.7140
F31.68392.71402.7140
F41.68392.71402.7140

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 107.389 F2 Si1 F4 107.389
F3 Si1 F4 107.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.711      
2 F -0.570      
3 F -0.570      
4 F -0.570      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 88.276
(<r2>)1/2 9.396