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All results from a given calculation for SiF3 (Silicon trifluoride radical)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-585.509936
Energy at 298.15K-585.510776
HF Energy-585.509936
Nuclear repulsion energy169.411033
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 PBEPBE/3-21G
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 774 767 17.68      
2 A1 351 348 39.50      
3 E 922 914 62.75      
3 E 922 914 62.75      
4 E 265 262 8.42      
4 E 265 262 8.42      

Unscaled Zero Point Vibrational Energy (zpe) 1749.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 1733.7 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 PBEPBE/3-21G
ABC
0.22733 0.22733 0.12679

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.421
F2 0.000 1.527 -0.218
F3 1.323 -0.764 -0.218
F4 -1.323 -0.764 -0.218

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.65581.65581.6558
F21.65582.64552.6455
F31.65582.64552.6455
F41.65582.64552.6455

picture of Silicon trifluoride radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 F3 106.038 F2 Si1 F4 106.038
F3 Si1 F4 106.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.994      
2 F -0.331      
3 F -0.331      
4 F -0.331      


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 1.439 1.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.073 0.000 0.000
y 0.000 -29.073 0.000
z 0.000 0.000 -24.682
Traceless
 xyz
x -2.195 0.000 0.000
y 0.000 -2.195 0.000
z 0.000 0.000 4.390
Polar
3z2-r28.781
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 3.194 0.000 0.000
y 0.000 3.195 0.000
z 0.000 0.000 2.472


<r2> (average value of r2) Å2
<r2> 84.001
(<r2>)1/2 9.165