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

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-581.287278
Energy at 298.15K-581.287976
HF Energy-581.287278
Nuclear repulsion energy171.242608
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 mPW1PW91/STO-3G
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 819 719 3.98      
2 A1 359 316 15.58      
3 E 908 798 49.95      
3 E 908 798 49.94      
4 E 276 243 6.28      
4 E 276 243 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 1773.0 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 1558.3 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 mPW1PW91/STO-3G
ABC
0.23240 0.23240 0.13386

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.470
F2 0.000 1.486 -0.244
F3 1.287 -0.743 -0.244
F4 -1.287 -0.743 -0.244

Atom - Atom Distances (Å)
  Si1 F2 F3 F4
Si11.64911.64911.6491
F21.64912.57472.5747
F31.64912.57472.5747
F41.64912.57472.5747

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 102.639 F2 Si1 F4 102.639
F3 Si1 F4 102.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.685      
2 F -0.228      
3 F -0.228      
4 F -0.228      


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 1.174 1.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.241 0.000 0.000
y 0.000 -24.241 0.000
z 0.000 0.000 -21.244
Traceless
 xyz
x -1.499 0.000 0.000
y 0.000 -1.499 0.000
z 0.000 0.000 2.997
Polar
3z2-r25.995
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 1.993 0.000 0.000
y 0.000 1.993 0.000
z 0.000 0.000 1.474


<r2> (average value of r2) Å2
<r2> 78.877
(<r2>)1/2 8.881