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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-581.936408
Energy at 298.15K 
HF Energy-581.936408
Nuclear repulsion energy182.051743
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 B3LYP/STO-3G
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 2565 2289 59.15 58.80 0.31 0.47
2 A1 787 702 22.03 5.21 0.00 0.00
3 A1 355 317 39.93 1.54 0.75 0.86
4 E 1007 898 155.71 1.09 0.75 0.86
4 E 1007 898 155.70 1.09 0.75 0.86
5 E 844 753 22.06 9.74 0.75 0.86
5 E 844 753 22.06 9.74 0.75 0.86
6 E 268 239 7.33 1.26 0.75 0.86
6 E 268 239 7.33 1.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3972.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 3545.1 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 B3LYP/STO-3G
ABC
0.22202 0.22202 0.12773

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.344
H2 0.000 0.000 1.800
F3 0.000 1.522 -0.245
F4 1.318 -0.761 -0.245
F5 -1.318 -0.761 -0.245

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45561.63201.63201.6320
H21.45562.54922.54922.5492
F31.63202.54922.63572.6357
F41.63202.54922.63572.6357
F51.63202.54922.63572.6357

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.180 H2 Si1 F4 111.180
H2 Si1 F5 111.180 F3 Si1 F4 107.710
F3 Si1 F5 107.710 F4 Si1 F5 107.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.895      
2 H -0.147      
3 F -0.249      
4 F -0.249      
5 F -0.249      


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 0.782 0.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.455 0.000 0.000
y 0.000 -25.455 0.000
z 0.000 0.000 -23.435
Traceless
 xyz
x -1.010 0.000 0.000
y 0.000 -1.010 0.000
z 0.000 0.000 2.019
Polar
3z2-r24.039
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 1.622 0.000 0.000
y 0.000 1.622 0.000
z 0.000 0.000 1.507


<r2> (average value of r2) Å2
<r2> 84.525
(<r2>)1/2 9.194