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 SiHF3 (trifluorosilane)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-589.445787
Energy at 298.15K 
HF Energy-589.445787
Nuclear repulsion energy185.949074
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 HSEh1PBE/6-31+G**
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 2395 2286 67.75 99.07 0.12 0.22
2 A1 834 796 87.61 6.70 0.00 0.00
3 A1 406 387 71.60 0.89 0.68 0.81
4 E 981 937 281.36 0.62 0.75 0.86
4 E 981 937 281.36 0.62 0.75 0.86
5 E 826 789 19.78 8.03 0.75 0.86
5 E 826 789 19.78 8.03 0.75 0.86
6 E 288 275 14.02 0.67 0.75 0.86
6 E 288 275 14.02 0.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3912.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 3735.6 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 HSEh1PBE/6-31+G**
ABC
0.23171 0.23171 0.13306

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.329
H2 0.000 0.000 1.791
F3 0.000 1.491 -0.237
F4 1.291 -0.745 -0.237
F5 -1.291 -0.745 -0.237

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46191.59501.59501.5950
H21.46192.51762.51762.5176
F31.59502.51762.58242.5824
F41.59502.51762.58242.5824
F51.59502.51762.58242.5824

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.811 H2 Si1 F4 110.811
H2 Si1 F5 110.811 F3 Si1 F4 108.099
F3 Si1 F5 108.099 F4 Si1 F5 108.099
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.978      
2 H -0.083      
3 F -0.298      
4 F -0.298      
5 F -0.298      


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 1.625 1.625
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.857 0.000 0.000
y 0.000 -29.857 0.000
z 0.000 0.000 -25.892
Traceless
 xyz
x -1.983 0.000 0.000
y 0.000 -1.983 0.000
z 0.000 0.000 3.965
Polar
3z2-r27.930
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 3.197 0.000 0.000
y 0.000 3.197 -0.000
z 0.000 -0.000 3.257


<r2> (average value of r2) Å2
<r2> 84.088
(<r2>)1/2 9.170