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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G**
 hartrees
Energy at 0K-589.448782
Energy at 298.15K 
HF Energy-589.246343
Nuclear repulsion energy186.712637
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 B2PLYP=FULLultrafine/6-31G**
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 2427 2427 89.49 75.38 0.17 0.29
2 A1 863 863 74.36 5.30 0.00 0.00
3 A1 419 419 70.61 0.88 0.71 0.83
4 E 1039 1039 256.72 0.51 0.75 0.86
4 E 1039 1039 256.72 0.51 0.75 0.86
5 E 872 872 21.58 9.41 0.75 0.86
5 E 872 872 21.58 9.41 0.75 0.86
6 E 300 300 12.69 0.60 0.75 0.86
6 E 300 300 12.69 0.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4066.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4066.2 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 B2PLYP=FULLultrafine/6-31G**
ABC
0.23363 0.23363 0.13399

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.326
H2 0.000 0.000 1.783
F3 0.000 1.486 -0.235
F4 1.287 -0.743 -0.235
F5 -1.287 -0.743 -0.235

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45731.58811.58811.5881
H21.45732.50612.50612.5061
F31.58812.50612.57332.5733
F41.58812.50612.57332.5733
F51.58812.50612.57332.5733

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.682 H2 Si1 F4 110.682
H2 Si1 F5 110.682 F3 Si1 F4 108.233
F3 Si1 F5 108.233 F4 Si1 F5 108.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.276      
2 H -0.133      
3 F -0.381      
4 F -0.381      
5 F -0.381      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.919 0.000 0.000
y 0.000 -28.919 0.000
z 0.000 0.000 -25.579
Traceless
 xyz
x -1.670 0.000 0.000
y 0.000 -1.670 0.000
z 0.000 0.000 3.340
Polar
3z2-r26.679
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 2.612 0.000 0.000
y 0.000 2.612 0.000
z 0.000 0.000 2.725


<r2> (average value of r2) Å2
<r2> 83.125
(<r2>)1/2 9.117