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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-589.860914
Energy at 298.15K 
HF Energy-589.860914
Nuclear repulsion energy187.156436
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 B1B95/6-311G**
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 2394 2299 66.85 88.17 0.16 0.27
2 A1 850 816 91.46 4.24 0.00 0.00
3 A1 410 394 77.71 1.07 0.73 0.84
4 E 1005 965 274.11 0.42 0.75 0.86
4 E 1005 965 274.15 0.41 0.75 0.86
5 E 840 806 21.67 11.04 0.75 0.86
5 E 840 806 21.68 11.03 0.75 0.86
6 E 296 284 14.01 0.84 0.75 0.86
6 E 296 284 14.02 0.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3967.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 3809.2 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 B1B95/6-311G**
ABC
0.23473 0.23473 0.13509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.331
H2 0.000 0.000 1.786
F3 0.000 1.480 -0.238
F4 1.281 -0.740 -0.238
F5 -1.281 -0.740 -0.238

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45541.58511.58511.5851
H21.45542.50702.50702.5070
F31.58512.50702.56292.5629
F41.58512.50702.56292.5629
F51.58512.50702.56292.5629

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.012 H2 Si1 F4 111.012
H2 Si1 F5 111.012 F3 Si1 F4 107.888
F3 Si1 F5 107.888 F4 Si1 F5 107.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.330      
2 H -0.155      
3 F -0.392      
4 F -0.392      
5 F -0.392      


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 1.621 1.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.531 0.000 0.000
y 0.000 -29.531 0.000
z 0.000 0.000 -25.626
Traceless
 xyz
x -1.953 0.000 0.000
y 0.000 -1.953 0.000
z 0.000 0.000 3.906
Polar
3z2-r27.811
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 2.589 0.000 0.000
y 0.000 2.590 -0.000
z 0.000 -0.000 2.766


<r2> (average value of r2) Å2
<r2> 82.995
(<r2>)1/2 9.110