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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-589.497337
Energy at 298.15K 
HF Energy-589.497337
Nuclear repulsion energy183.668616
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 PBEPBE/TZVP
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 2289 2263 56.67 98.32 0.15 0.27
2 A1 789 780 79.56 7.07 0.00 0.00
3 A1 382 378 63.34 1.38 0.68 0.81
4 E 926 915 248.09 0.59 0.75 0.86
4 E 926 915 248.09 0.59 0.75 0.86
5 E 775 766 18.64 9.96 0.75 0.86
5 E 775 766 18.64 9.96 0.75 0.86
6 E 271 268 11.80 1.09 0.75 0.86
6 E 271 268 11.80 1.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3701.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 3659.9 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 PBEPBE/TZVP
ABC
0.22606 0.22606 0.12983

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.334
H2 0.000 0.000 1.811
F3 0.000 1.509 -0.240
F4 1.307 -0.755 -0.240
F5 -1.307 -0.755 -0.240

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47671.61501.61501.6150
H21.47672.54682.54682.5468
F31.61502.54682.61432.6143
F41.61502.54682.61432.6143
F51.61502.54682.61432.6143

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.844 H2 Si1 F4 110.844
H2 Si1 F5 110.844 F3 Si1 F4 108.064
F3 Si1 F5 108.064 F4 Si1 F5 108.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.866      
2 H -0.068      
3 F -0.266      
4 F -0.266      
5 F -0.266      


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 1.583 1.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.979 0.000 0.000
y 0.000 -29.979 0.000
z 0.000 0.000 -25.998
Traceless
 xyz
x -1.991 0.000 0.000
y 0.000 -1.991 0.000
z 0.000 0.000 3.981
Polar
3z2-r27.963
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 3.204 0.000 0.000
y 0.000 3.204 0.000
z 0.000 0.000 3.278


<r2> (average value of r2) Å2
<r2> 85.809
(<r2>)1/2 9.263