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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-584.642741
Energy at 298.15K-584.643732
HF Energy-584.241565
Nuclear repulsion energy171.636923
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 MP4/3-21G
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 841 815        
2 A1 390 378        
3 E 1000 970        
3 E 1000 970        
4 E 287 278        
4 E 287 278        

Unscaled Zero Point Vibrational Energy (zpe) 1902.2 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 1844.8 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 MP4/3-21G
ABC
0.23330 0.23330 0.12951

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.407
F2 0.000 1.511 -0.211
F3 1.309 -0.756 -0.211
F4 -1.309 -0.756 -0.211

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.63281.63281.6328
F21.63282.61752.6175
F31.63282.61752.6175
F41.63282.61752.6175

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 106.549 F2 Si1 F4 106.549
F3 Si1 F4 106.549
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability