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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3LYP/6-31G**

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**
 hartrees
Energy at 0K-589.803457
Energy at 298.15K 
HF Energy-589.803457
Nuclear repulsion energy186.492280
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**
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 2374 2281 85.26 77.82 0.17 0.30
2 A1 854 820 72.70 5.27 0.00 0.00
3 A1 415 399 66.30 0.89 0.71 0.83
4 E 1027 987 242.65 0.49 0.75 0.86
4 E 1027 987 242.65 0.49 0.75 0.86
5 E 856 823 19.01 9.42 0.75 0.86
5 E 856 823 19.01 9.42 0.75 0.86
6 E 297 285 11.82 0.59 0.75 0.86
6 E 297 285 11.82 0.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4001.6 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 3844.7 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 B3LYP/6-31G**
ABC
0.23308 0.23308 0.13373

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.326
H2 0.000 0.000 1.790
F3 0.000 1.487 -0.236
F4 1.288 -0.744 -0.236
F5 -1.288 -0.744 -0.236

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46421.58971.58971.5897
H21.46422.51322.51322.5132
F31.58972.51322.57582.5758
F41.58972.51322.57582.5758
F51.58972.51322.57582.5758

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 110.695 H2 Si1 F4 110.695
H2 Si1 F5 110.695 F3 Si1 F4 108.221
F3 Si1 F5 108.221 F4 Si1 F5 108.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.187      
2 H -0.115      
3 F -0.358      
4 F -0.358      
5 F -0.358      


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 1.352 1.352
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.769 0.000 0.000
y 0.000 -28.769 0.000
z 0.000 0.000 -25.458
Traceless
 xyz
x -1.655 0.000 0.000
y 0.000 -1.655 0.000
z 0.000 0.000 3.311
Polar
3z2-r26.622
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 2.669 0.000 0.000
y 0.000 2.669 0.000
z 0.000 0.000 2.793


<r2> (average value of r2) Å2
<r2> 83.187
(<r2>)1/2 9.121