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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-589.620490
Energy at 298.15K 
HF Energy-589.620490
Nuclear repulsion energy176.437333
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 BLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2238 2221 79.22 122.09 0.21 0.34
2 A1 730 725 50.34 10.33 0.00 0.00
3 A1 345 342 67.71 2.47 0.74 0.85
4 E 904 897 169.98 1.22 0.75 0.86
4 E 904 897 169.98 1.22 0.75 0.86
5 E 763 758 10.02 16.89 0.75 0.86
5 E 763 758 10.02 16.89 0.75 0.86
6 E 243 241 13.87 1.53 0.75 0.86
6 E 243 241 13.87 1.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3567.1 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 3539.9 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 BLYP/6-31G
ABC
0.20851 0.20851 0.12028

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.362
H2 0.000 0.000 1.852
F3 0.000 1.568 -0.256
F4 1.358 -0.784 -0.256
F5 -1.358 -0.784 -0.256

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.49071.68541.68541.6854
H21.49072.62752.62752.6275
F31.68542.62752.71612.7161
F41.68542.62752.71612.7161
F51.68542.62752.71612.7161

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.496 H2 Si1 F4 111.496
H2 Si1 F5 111.496 F3 Si1 F4 107.373
F3 Si1 F5 107.373 F4 Si1 F5 107.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.260      
2 H -0.096      
3 F -0.388      
4 F -0.388      
5 F -0.388      


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 2.388 2.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.478 0.000 0.000
y 0.000 -31.478 0.000
z 0.000 0.000 -25.837
Traceless
 xyz
x -2.820 0.000 0.000
y 0.000 -2.820 0.000
z 0.000 0.000 5.640
Polar
3z2-r211.280
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 2.930 0.000 0.000
y 0.000 2.930 0.000
z 0.000 0.000 2.931


<r2> (average value of r2) Å2
<r2> 91.911
(<r2>)1/2 9.587