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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-589.461794
Energy at 298.15K 
HF Energy-589.461794
Nuclear repulsion energy184.702198
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/6-311G**
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 2301 2280 65.06 97.08 0.16 0.28
2 A1 806 798 78.92 5.87 0.00 0.00
3 A1 392 388 64.44 1.33 0.71 0.83
4 E 962 953 241.86 0.58 0.75 0.86
4 E 962 953 241.85 0.58 0.75 0.86
5 E 803 796 13.43 12.56 0.75 0.86
5 E 803 796 13.43 12.56 0.75 0.86
6 E 283 281 11.82 1.01 0.75 0.86
6 E 283 281 11.82 1.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3797.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3762.8 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 PBEPBE/6-311G**
ABC
0.22862 0.22862 0.13138

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.333
H2 0.000 0.000 1.806
F3 0.000 1.500 -0.239
F4 1.299 -0.750 -0.239
F5 -1.299 -0.750 -0.239

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47271.60591.60591.6059
H21.47272.53642.53642.5364
F31.60592.53642.59882.5988
F41.60592.53642.59882.5988
F51.60592.53642.59882.5988

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.880 H2 Si1 F4 110.880
H2 Si1 F5 110.880 F3 Si1 F4 108.026
F3 Si1 F5 108.026 F4 Si1 F5 108.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.212      
2 H -0.139      
3 F -0.358      
4 F -0.358      
5 F -0.358      


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 1.537 1.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.659 0.000 0.000
y 0.000 -29.659 0.000
z 0.000 0.000 -25.916
Traceless
 xyz
x -1.872 0.000 0.000
y 0.000 -1.872 0.000
z 0.000 0.000 3.743
Polar
3z2-r27.486
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 2.837 0.000 0.000
y 0.000 2.837 0.000
z 0.000 0.000 3.027


<r2> (average value of r2) Å2
<r2> 84.891
(<r2>)1/2 9.214