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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBEPBEultrafine/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-589.521895
Energy at 298.15K 
HF Energy-589.521895
Nuclear repulsion energy185.223684
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/daug-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 2294 2294 51.82 109.64 0.10 0.18
2 A1 799 799 71.39 10.49 0.00 0.00
3 A1 392 392 57.61 0.70 0.51 0.67
4 E 939 939 229.14 0.86 0.75 0.86
4 E 939 939 229.13 0.86 0.75 0.86
5 E 794 794 15.74 4.68 0.75 0.86
5 E 794 794 15.75 4.66 0.75 0.86
6 E 278 278 10.47 0.47 0.75 0.86
6 E 278 278 10.48 0.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3752.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3752.9 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 PBEPBEultrafine/daug-cc-pVTZ
ABC
0.22992 0.22992 0.13187

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/daug-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 1.801
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
Si11.47311.60061.60061.6006
H21.47312.52902.52902.5290
F31.60062.52902.59402.5940
F41.60062.52902.59402.5940
F51.60062.52902.59402.5940

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.659 H2 Si1 F4 110.659
H2 Si1 F5 110.659 F3 Si1 F4 108.258
F3 Si1 F5 108.258 F4 Si1 F5 108.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 2.011      
2 H 0.446      
3 F -0.819      
4 F -0.819      
5 F -0.819      


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 1.390 1.390
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.771 0.000 0.000
y 0.000 -29.771 0.000
z 0.000 0.000 -26.177
Traceless
 xyz
x -1.797 0.000 0.000
y 0.000 -1.797 0.000
z 0.000 0.000 3.594
Polar
3z2-r27.187
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 3.957 0.000 0.000
y 0.000 3.957 0.000
z 0.000 0.000 4.017


<r2> (average value of r2) Å2
<r2> 84.669
(<r2>)1/2 9.202