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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3LYP/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 B3LYP/6-311G**
 hartrees
Energy at 0K-589.920041
Energy at 298.15K 
HF Energy-589.920041
Nuclear repulsion energy186.173528
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/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 2378 2299 68.47 89.39 0.16 0.27
2 A1 835 807 88.99 4.50 0.00 0.00
3 A1 408 394 75.90 1.10 0.72 0.83
4 E 990 957 273.99 0.54 0.75 0.86
4 E 990 957 273.97 0.54 0.75 0.86
5 E 841 813 16.28 11.37 0.75 0.86
5 E 841 813 16.28 11.37 0.75 0.86
6 E 295 285 13.80 0.87 0.75 0.86
6 E 295 285 13.80 0.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3934.9 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 3804.3 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/6-311G**
ABC
0.23226 0.23226 0.13354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.332
H2 0.000 0.000 1.789
F3 0.000 1.488 -0.238
F4 1.289 -0.744 -0.238
F5 -1.289 -0.744 -0.238

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45771.59351.59351.5935
H21.45772.51502.51502.5150
F31.59352.51502.57772.5777
F41.59352.51502.57772.5777
F51.59352.51502.57772.5777

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.946 H2 Si1 F4 110.946
H2 Si1 F5 110.946 F3 Si1 F4 107.957
F3 Si1 F5 107.957 F4 Si1 F5 107.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.352      
2 H -0.169      
3 F -0.394      
4 F -0.394      
5 F -0.394      


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 1.629 1.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.788 0.000 0.000
y 0.000 -29.788 0.000
z 0.000 0.000 -25.857
Traceless
 xyz
x -1.965 0.000 0.000
y 0.000 -1.965 0.000
z 0.000 0.000 3.931
Polar
3z2-r27.861
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 2.628 0.000 0.000
y 0.000 2.628 0.000
z 0.000 0.000 2.811


<r2> (average value of r2) Å2
<r2> 83.859
(<r2>)1/2 9.157