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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: PBEPBEultrafine/aug-cc-pV(T+d)Z

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-pV(T+d)Z
 hartrees
Energy at 0K-589.531162
Energy at 298.15K 
HF Energy-589.531162
Nuclear repulsion energy186.259168
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-pV(T+d)Z
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 2289 54.02 108.93 0.10 0.18
2 A1 806 806 71.81 9.64 0.00 0.00
3 A1 397 397 57.11 0.69 0.51 0.67
4 E 947 947 231.99 0.82 0.75 0.86
4 E 947 947 231.99 0.82 0.75 0.86
5 E 799 799 14.42 4.55 0.75 0.86
5 E 799 799 14.43 4.54 0.75 0.86
6 E 284 284 10.35 0.47 0.75 0.86
6 E 284 284 10.35 0.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3774.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3774.6 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-pV(T+d)Z
ABC
0.23251 0.23251 0.13325

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.324
H2 0.000 0.000 1.794
F3 0.000 1.490 -0.235
F4 1.290 -0.745 -0.235
F5 -1.290 -0.745 -0.235

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47021.59121.59121.5912
H21.47022.51712.51712.5171
F31.59122.51712.58052.5805
F41.59122.51712.58052.5805
F51.59122.51712.58052.5805

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.553 H2 Si1 F4 110.553
H2 Si1 F5 110.553 F3 Si1 F4 108.368
F3 Si1 F5 108.368 F4 Si1 F5 108.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.736      
2 H -0.058      
3 F -0.559      
4 F -0.559      
5 F -0.559      


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 1.311 1.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.638 0.000 0.000
y 0.000 -29.638 0.000
z 0.000 0.000 -26.198
Traceless
 xyz
x -1.720 0.000 0.000
y 0.000 -1.720 0.000
z 0.000 0.000 3.440
Polar
3z2-r26.880
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 3.897 0.000 0.000
y 0.000 3.897 0.000
z 0.000 0.000 3.950


<r2> (average value of r2) Å2
<r2> 83.903
(<r2>)1/2 9.160