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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: wB97X-D/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/CEP-31G
 hartrees
Energy at 0K-77.063175
Energy at 298.15K 
HF Energy-77.063175
Nuclear repulsion energy61.112606
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 wB97X-D/CEP-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 2333 2333 43.58 127.10 0.20 0.33
2 A1 727 727 85.40 8.82 0.01 0.01
3 A1 349 349 95.26 2.65 0.69 0.82
4 E 878 878 235.37 0.83 0.75 0.86
4 E 877 877 234.42 0.82 0.75 0.86
5 E 754 754 17.85 16.43 0.75 0.86
5 E 754 754 18.06 16.24 0.75 0.86
6 E 246 246 19.11 1.72 0.75 0.86
6 E 246 246 19.08 1.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3582.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3582.4 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 wB97X-D/CEP-31G
ABC
0.21142 0.21142 0.12240

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.365
H2 0.000 0.000 1.846
F3 0.000 1.555 -0.258
F4 1.346 -0.777 -0.258
F5 -1.346 -0.777 -0.258

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.48051.67471.67471.6747
H21.48052.61552.61552.6155
F31.67472.61552.69252.6925
F41.67472.61552.69252.6925
F51.67472.61552.69252.6925

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.835 H2 Si1 F4 111.835
H2 Si1 F5 111.835 F3 Si1 F4 107.008
F3 Si1 F5 107.008 F4 Si1 F5 107.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.318      
2 H -0.003      
3 F -0.438      
4 F -0.438      
5 F -0.438      


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 3.059 3.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.986 0.000 0.000
y 0.000 -31.986 0.000
z 0.000 0.000 -24.517
Traceless
 xyz
x -3.735 0.000 0.000
y 0.000 -3.735 0.000
z 0.000 0.000 7.470
Polar
3z2-r214.940
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 2.789 0.000 0.000
y 0.000 2.785 -0.000
z 0.000 -0.000 2.681


<r2> (average value of r2) Å2
<r2> 74.505
(<r2>)1/2 8.632