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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-77.214086
Energy at 298.15K 
HF Energy-77.214086
Nuclear repulsion energy63.780023
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 ?a 828 828 17.89 7.45 0.75 0.86
2 ?a 828 828 18.00 7.38 0.75 0.86
3 ?a 826 826 89.59 4.14 0.00 0.01
4 A1 2367 2367 69.73 80.14 0.18 0.31
4 A1 409 409 73.88 1.03 0.67 0.80
5 E 972 972 257.99 0.64 0.75 0.86
5 E 972 972 258.21 0.64 0.75 0.86
6 E 290 290 13.79 0.67 0.75 0.86
6 E 290 290 13.80 0.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3890.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3890.8 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 wB97X-D/CEP-31G*
ABC
0.23125 0.23125 0.13287

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 0.329
H2 0.000 0.000 1.805
F3 0.000 1.492 -0.238
F4 1.292 -0.746 -0.238
F5 -1.292 -0.746 -0.238

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47571.59601.59601.5960
H21.47572.52942.52942.5294
F31.59602.52942.58422.5842
F41.59602.52942.58422.5842
F51.59602.52942.58422.5842

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.801 H2 Si1 F4 110.801
H2 Si1 F5 110.801 F3 Si1 F4 108.109
F3 Si1 F5 108.109 F4 Si1 F5 108.109
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 0.723      
2 H 0.058      
3 F -0.260      
4 F -0.260      
5 F -0.260      


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 1.645 1.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.368 0.000 0.000
y 0.000 -28.368 0.000
z 0.000 0.000 -24.066
Traceless
 xyz
x -2.151 0.000 0.000
y 0.000 -2.151 0.000
z 0.000 0.000 4.302
Polar
3z2-r28.603
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 2.750 0.000 0.000
y 0.000 2.752 0.002
z 0.000 0.002 2.721


<r2> (average value of r2) Å2
<r2> 68.447
(<r2>)1/2 8.273