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 SiF3 (Silicon trifluoride radical)

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-588.592496
Energy at 298.15K-588.593211
HF Energy-588.449728
Nuclear repulsion energy166.417534
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 B2PLYP/6-31G
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 741 741 47.63      
2 A1 343 343 71.56      
3 E 879 879 109.28      
3 E 879 879 109.28      
4 E 236 236 15.99      
4 E 236 236 15.99      

Unscaled Zero Point Vibrational Energy (zpe) 1656.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1656.8 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 B2PLYP/6-31G
ABC
0.21931 0.21931 0.12119

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.411
F2 0.000 1.562 -0.213
F3 1.353 -0.781 -0.213
F4 -1.353 -0.781 -0.213

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.68241.68241.6824
F21.68242.70592.7059
F31.68242.70592.7059
F41.68242.70592.7059

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 107.063 F2 Si1 F4 107.063
F3 Si1 F4 107.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.349      
2 F -0.450      
3 F -0.450      
4 F -0.450      


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 2.419 2.419
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.325 0.000 0.000
y 0.000 -31.325 0.000
z 0.000 0.000 -24.492
Traceless
 xyz
x -3.416 0.000 0.000
y 0.000 -3.416 0.000
z 0.000 0.000 6.832
Polar
3z2-r213.665
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 3.270 0.000 0.000
y 0.000 3.270 0.000
z 0.000 0.000 2.239


<r2> (average value of r2) Å2
<r2> 87.634
(<r2>)1/2 9.361