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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: CCD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-589.044171
Energy at 298.15K 
HF Energy-588.175704
Nuclear repulsion energy188.152416
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/cc-pVTZ
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 2409 2249 70.66      
2 A1 870 812 85.39      
3 A1 427 399 76.58      
4 E 1019 952 260.72      
4 E 1019 952 260.72      
5 E 861 804 28.78      
5 E 861 804 28.78      
6 E 307 287 12.97      
6 E 307 287 12.97      

Unscaled Zero Point Vibrational Energy (zpe) 4039.6 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 3771.8 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/cc-pVTZ
ABC
0.23726 0.23726 0.13616

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.323
H2 0.000 0.000 1.778
F3 0.000 1.474 -0.234
F4 1.276 -0.737 -0.234
F5 -1.276 -0.737 -0.234

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45501.57551.57551.5755
H21.45502.49392.49392.4939
F31.57552.49392.55282.5528
F41.57552.49392.55282.5528
F51.57552.49392.55282.5528

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.698 H2 Si1 F4 110.698
H2 Si1 F5 110.698 F3 Si1 F4 108.217
F3 Si1 F5 108.217 F4 Si1 F5 108.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability