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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: TPSSh/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/Def2TZVPP
 hartrees
Energy at 0K-589.976396
Energy at 298.15K 
HF Energy-589.976396
Nuclear repulsion energy187.606486
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 TPSSh/Def2TZVPP
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 2371 2371 62.48 86.62 0.12 0.21
2 A1 839 839 76.72 5.65 0.00 0.00
3 A1 409 409 62.99 0.77 0.64 0.78
4 E 987 987 247.92 0.46 0.75 0.86
4 E 987 987 247.93 0.46 0.75 0.86
5 E 831 831 18.90 5.36 0.75 0.86
5 E 831 831 18.90 5.35 0.75 0.86
6 E 294 294 11.12 0.52 0.75 0.86
6 E 294 294 11.13 0.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3920.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3920.7 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 TPSSh/Def2TZVPP
ABC
0.23588 0.23588 0.13526

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

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 1.781
F3 0.000 1.479 -0.233
F4 1.281 -0.739 -0.233
F5 -1.281 -0.739 -0.233

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45791.58001.58001.5800
H21.45792.49892.49892.4989
F31.58002.49892.56132.5613
F41.58002.49892.56132.5613
F51.58002.49892.56132.5613

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.619 H2 Si1 F4 110.619
H2 Si1 F5 110.619 F3 Si1 F4 108.299
F3 Si1 F5 108.299 F4 Si1 F5 108.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.939      
2 H -0.107      
3 F -0.277      
4 F -0.277      
5 F -0.277      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.279 1.279
CHELPG        
AIM        
ESP        


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 3.273 0.000 0.000
y 0.000 3.273 -0.000
z 0.000 -0.000 3.320


<r2> (average value of r2) Å2
<r2> 82.660
(<r2>)1/2 9.092