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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-588.176436
Energy at 298.15K 
HF Energy-588.176436
Nuclear repulsion energy190.197825
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 HF/cc-pVTZ
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 2473 2251 81.83 79.20 0.11 0.19
2 A1 910 828 101.09 2.84 0.00 0.01
3 A1 448 408 89.80 0.36 0.68 0.81
4 E 1057 962 296.49 0.22 0.75 0.86
4 E 1057 962 296.49 0.22 0.75 0.86
5 E 907 825 29.97 4.40 0.75 0.86
5 E 907 825 29.97 4.40 0.75 0.86
6 E 322 293 15.00 0.27 0.75 0.86
6 E 322 293 15.00 0.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4201.0 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 3823.4 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 HF/cc-pVTZ
ABC
0.24245 0.24245 0.13952

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 1.774
F3 0.000 1.456 -0.233
F4 1.261 -0.728 -0.233
F5 -1.261 -0.728 -0.233

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45071.55861.55861.5586
H21.45072.47942.47942.4794
F31.55862.47942.52192.5219
F41.55862.47942.52192.5219
F51.55862.47942.52192.5219

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.904 H2 Si1 F4 110.904
H2 Si1 F5 110.904 F3 Si1 F4 108.001
F3 Si1 F5 108.001 F4 Si1 F5 108.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.026      
2 H -0.048      
3 F -0.326      
4 F -0.326      
5 F -0.326      


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 1.455 1.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.204 0.000 0.000
y 0.000 -29.204 0.000
z 0.000 0.000 -25.720
Traceless
 xyz
x -1.742 0.000 0.000
y 0.000 -1.742 0.000
z 0.000 0.000 3.484
Polar
3z2-r26.967
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.667 0.000 0.000
y 0.000 2.667 0.000
z 0.000 0.000 2.776


<r2> (average value of r2) Å2
<r2> 80.828
(<r2>)1/2 8.990