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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3LYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-589.980989
Energy at 298.15K 
HF Energy-589.980989
Nuclear repulsion energy186.800643
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/aug-cc-pVTZ
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 2369 2292 56.67 102.37 0.09 0.17
2 A1 831 804 79.57 8.04 0.00 0.00
3 A1 408 395 66.34 0.59 0.52 0.68
4 E 971 939 252.40 0.63 0.75 0.86
4 E 971 939 252.34 0.63 0.75 0.86
5 E 833 806 17.91 4.28 0.75 0.86
5 E 833 806 17.91 4.28 0.75 0.86
6 E 291 282 12.02 0.39 0.75 0.86
6 E 291 282 12.02 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3898.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 3772.0 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/aug-cc-pVTZ
ABC
0.23385 0.23385 0.13425

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.327
H2 0.000 0.000 1.786
F3 0.000 1.484 -0.236
F4 1.285 -0.742 -0.236
F5 -1.285 -0.742 -0.236

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45831.58751.58751.5875
H21.45832.50772.50772.5077
F31.58752.50772.57082.5708
F41.58752.50772.57082.5708
F51.58752.50772.57082.5708

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.774 H2 Si1 F4 110.774
H2 Si1 F5 110.774 F3 Si1 F4 108.138
F3 Si1 F5 108.138 F4 Si1 F5 108.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.628      
2 H -0.002      
3 F -0.542      
4 F -0.542      
5 F -0.542      


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 1.467 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.792 0.000 0.000
y 0.000 -29.792 0.000
z 0.000 0.000 -26.066
Traceless
 xyz
x -1.863 0.000 0.000
y 0.000 -1.863 0.000
z 0.000 0.000 3.725
Polar
3z2-r27.451
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 3.647 0.000 0.000
y 0.000 3.647 0.000
z 0.000 0.000 3.699


<r2> (average value of r2) Å2
<r2> 83.503
(<r2>)1/2 9.138