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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: MP3=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-589.269386
Energy at 298.15K 
HF Energy-588.168734
Nuclear repulsion energy189.134406
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 MP3=FULL/6-311+G(3df,2p)
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 2425 2425 62.41      
2 A1 868 868 85.28      
3 A1 429 429 75.77      
4 E 1015 1015 269.38      
4 E 1015 1015 269.38      
5 E 859 859 24.87      
5 E 859 859 24.87      
6 E 309 309 13.07      
6 E 309 309 13.07      

Unscaled Zero Point Vibrational Energy (zpe) 4044.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4044.0 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 MP3=FULL/6-311+G(3df,2p)
ABC
0.23974 0.23974 0.13745

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.320
H2 0.000 0.000 1.768
F3 0.000 1.467 -0.231
F4 1.270 -0.733 -0.231
F5 -1.270 -0.733 -0.231

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.44781.56711.56711.5671
H21.44782.47952.47952.4795
F31.56712.47952.54082.5408
F41.56712.47952.54082.5408
F51.56712.47952.54082.5408

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.596 H2 Si1 F4 110.596
H2 Si1 F5 110.596 F3 Si1 F4 108.323
F3 Si1 F5 108.323 F4 Si1 F5 108.323
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability