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 SiHF3 (trifluorosilane)

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-588.820863
Energy at 298.15K 
HF Energy-588.113550
Nuclear repulsion energy187.477757
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 CCD/6-311G**
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 2453 2342 77.17      
2 A1 868 829 97.17      
3 A1 428 408 91.29      
4 E 1024 978 310.68      
4 E 1024 978 310.68      
5 E 882 842 26.77      
5 E 882 842 26.77      
6 E 312 298 16.30      
6 E 312 298 16.30      

Unscaled Zero Point Vibrational Energy (zpe) 4091.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 3907.8 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 CCD/6-311G**
ABC
0.23554 0.23554 0.13524

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.327
H2 0.000 0.000 1.775
F3 0.000 1.479 -0.235
F4 1.281 -0.739 -0.235
F5 -1.281 -0.739 -0.235

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.44791.58211.58211.5821
H21.44792.49542.49542.4954
F31.58212.49542.56152.5615
F41.58212.49542.56152.5615
F51.58212.49542.56152.5615

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.812 H2 Si1 F4 110.812
H2 Si1 F5 110.812 F3 Si1 F4 108.098
F3 Si1 F5 108.098 F4 Si1 F5 108.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability