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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-589.801445
Energy at 298.15K 
HF Energy-589.801445
Nuclear repulsion energy187.684763
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 B3PW91/6-311+G(3df,2p)
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 2364 2263 57.47 95.46 0.10 0.19
2 A1 832 796 77.77 6.88 0.00 0.01
3 A1 413 395 64.40 0.58 0.57 0.73
4 E 976 935 248.95 0.64 0.75 0.86
4 E 976 935 248.97 0.64 0.75 0.86
5 E 824 789 16.90 4.63 0.75 0.86
5 E 824 789 16.90 4.63 0.75 0.86
6 E 297 284 11.28 0.44 0.75 0.86
6 E 297 284 11.29 0.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3901.2 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 3734.7 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 B3PW91/6-311+G(3df,2p)
ABC
0.23608 0.23608 0.13529

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.322
H2 0.000 0.000 1.780
F3 0.000 1.479 -0.233
F4 1.280 -0.739 -0.233
F5 -1.280 -0.739 -0.233

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.45801.57911.57911.5791
H21.45802.49732.49732.4973
F31.57912.49732.56102.5610
F41.57912.49732.56102.5610
F51.57912.49732.56102.5610

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.558 H2 Si1 F4 110.558
H2 Si1 F5 110.558 F3 Si1 F4 108.363
F3 Si1 F5 108.363 F4 Si1 F5 108.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.264      
2 H -0.064      
3 F -0.400      
4 F -0.400      
5 F -0.400      


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 1.351 1.351
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.305 0.000 0.000
y 0.000 -29.305 0.000
z 0.000 0.000 -25.860
Traceless
 xyz
x -1.723 0.000 0.000
y 0.000 -1.723 0.000
z 0.000 0.000 3.446
Polar
3z2-r26.891
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 3.480 0.000 0.000
y 0.000 3.480 0.000
z 0.000 0.000 3.538


<r2> (average value of r2) Å2
<r2> 82.692
(<r2>)1/2 9.094