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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-589.835977
Energy at 298.15K 
HF Energy-589.835977
Nuclear repulsion energy188.113210
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/6-31G(2df,p)
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 2346 2264 65.15 68.55 0.15 0.26
2 A1 852 823 66.99 5.37 0.00 0.00
3 A1 418 404 58.94 0.60 0.67 0.80
4 E 1015 979 211.85 0.36 0.75 0.86
4 E 1015 979 211.82 0.36 0.75 0.86
5 E 837 808 22.03 5.65 0.75 0.86
5 E 837 808 22.02 5.65 0.75 0.86
6 E 301 290 10.25 0.38 0.75 0.86
6 E 301 290 10.26 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3960.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3822.2 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/6-31G(2df,p)
ABC
0.23717 0.23717 0.13601

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.321
H2 0.000 0.000 1.782
F3 0.000 1.475 -0.233
F4 1.277 -0.737 -0.233
F5 -1.277 -0.737 -0.233

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46091.57531.57531.5753
H21.46092.49702.49702.4970
F31.57532.49702.55422.5542
F41.57532.49702.55422.5542
F51.57532.49702.55422.5542

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.591 H2 Si1 F4 110.591
H2 Si1 F5 110.591 F3 Si1 F4 108.329
F3 Si1 F5 108.329 F4 Si1 F5 108.329
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.495      
2 H 0.007      
3 F -0.167      
4 F -0.167      
5 F -0.167      


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 1.138 1.138
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.422 0.000 0.000
y 0.000 -28.422 0.000
z 0.000 0.000 -25.603
Traceless
 xyz
x -1.410 0.000 0.000
y 0.000 -1.410 0.000
z 0.000 0.000 2.819
Polar
3z2-r25.639
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 3.040 0.000 0.000
y 0.000 3.040 0.000
z 0.000 0.000 3.146


<r2> (average value of r2) Å2
<r2> 81.966
(<r2>)1/2 9.054