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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: wB97X-D/CEP-121G*

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-121G*
 hartrees
Energy at 0K-77.221137
Energy at 298.15K 
HF Energy-77.221137
Nuclear repulsion energy63.744589
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-121G*
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 825 825 18.36 9.10 0.75 0.86
2 ?a 825 825 18.45 9.03 0.75 0.86
3 ?a 820 820 89.23 5.24 0.00 0.00
4 A1 2374 2374 73.00 87.73 0.18 0.31
4 A1 406 406 73.00 0.95 0.64 0.78
5 E 968 968 267.79 0.38 0.75 0.86
5 E 968 968 268.01 0.38 0.75 0.86
6 E 287 287 12.89 0.67 0.75 0.86
6 E 287 287 12.90 0.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3879.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3879.1 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-121G*
ABC
0.23098 0.23098 0.13276

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.330
H2 0.000 0.000 1.807
F3 0.000 1.493 -0.238
F4 1.293 -0.746 -0.238
F5 -1.293 -0.746 -0.238

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47671.59711.59711.5971
H21.47672.53162.53162.5316
F31.59712.53162.58532.5853
F41.59712.53162.58532.5853
F51.59712.53162.58532.5853

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.837 H2 Si1 F4 110.837
H2 Si1 F5 110.837 F3 Si1 F4 108.072
F3 Si1 F5 108.072 F4 Si1 F5 108.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.970      
2 H -0.025      
3 F -0.315      
4 F -0.315      
5 F -0.315      


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 1.591 1.591
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.418 0.000 0.000
y 0.000 -28.418 0.000
z 0.000 0.000 -24.422
Traceless
 xyz
x -1.998 0.000 0.000
y 0.000 -1.998 0.000
z 0.000 0.000 3.996
Polar
3z2-r27.992
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 2.891 0.000 0.000
y 0.000 2.892 0.002
z 0.000 0.002 3.018


<r2> (average value of r2) Å2
<r2> 68.594
(<r2>)1/2 8.282