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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-589.520799
Energy at 298.15K 
HF Energy-589.520799
Nuclear repulsion energy185.178093
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 PBEPBEultrafine/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 2292 2267 51.83 110.37 0.10 0.18
2 A1 800 791 71.58 10.15 0.00 0.00
3 A1 392 387 57.74 0.73 0.51 0.67
4 E 938 928 229.15 0.88 0.75 0.86
4 E 938 928 229.15 0.87 0.75 0.86
5 E 793 784 15.86 4.74 0.75 0.86
5 E 793 784 15.87 4.73 0.75 0.86
6 E 279 276 10.54 0.49 0.75 0.86
6 E 279 276 10.54 0.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3752.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 3710.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
0.22981 0.22981 0.13182

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.328
H2 0.000 0.000 1.802
F3 0.000 1.498 -0.237
F4 1.297 -0.749 -0.237
F5 -1.297 -0.749 -0.237

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47331.60101.60101.6010
H21.47332.52982.52982.5298
F31.60102.52982.59442.5944
F41.60102.52982.59442.5944
F51.60102.52982.59442.5944

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.677 H2 Si1 F4 110.677
H2 Si1 F5 110.677 F3 Si1 F4 108.239
F3 Si1 F5 108.239 F4 Si1 F5 108.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.503      
2 H 0.022      
3 F -0.508      
4 F -0.508      
5 F -0.508      


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 1.399 1.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.795 0.000 0.000
y 0.000 -29.795 0.000
z 0.000 0.000 -26.170
Traceless
 xyz
x -1.812 0.000 0.000
y 0.000 -1.812 0.000
z 0.000 0.000 3.625
Polar
3z2-r27.250
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 3.936 0.000 0.000
y 0.000 3.936 0.000
z 0.000 0.000 3.986


<r2> (average value of r2) Å2
<r2> 84.706
(<r2>)1/2 9.204