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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B3PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-589.689717
Energy at 298.15K 
HF Energy-589.689717
Nuclear repulsion energy183.428840
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2348 2265 42.11 107.66 0.10 0.18
2 A1 803 775 79.21 9.03 0.00 0.00
3 A1 383 369 62.21 0.75 0.54 0.70
4 E 941 908 241.04 0.91 0.75 0.86
4 E 941 908 241.04 0.91 0.75 0.86
5 E 800 771 15.60 4.92 0.75 0.86
5 E 800 771 15.61 4.92 0.75 0.86
6 E 268 259 11.67 0.50 0.75 0.86
6 E 268 259 11.67 0.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3775.9 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 3642.3 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/aug-cc-pVDZ
ABC
0.22545 0.22545 0.12978

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.340
H2 0.000 0.000 1.810
F3 0.000 1.510 -0.243
F4 1.307 -0.755 -0.243
F5 -1.307 -0.755 -0.243

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.47031.61831.61831.6183
H21.47032.54852.54852.5485
F31.61832.54852.61482.6148
F41.61832.54852.61482.6148
F51.61832.54852.61482.6148

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.110 H2 Si1 F4 111.110
H2 Si1 F5 111.110 F3 Si1 F4 107.784
F3 Si1 F5 107.784 F4 Si1 F5 107.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.500      
2 H 0.204      
3 F -0.568      
4 F -0.568      
5 F -0.568      


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 1.705 1.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.882 0.000 0.000
y 0.000 -29.882 0.000
z 0.000 0.000 -25.799
Traceless
 xyz
x -2.041 0.000 0.000
y 0.000 -2.041 0.000
z 0.000 0.000 4.082
Polar
3z2-r28.165
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 3.679 0.000 0.000
y 0.000 3.679 0.000
z 0.000 0.000 3.715


<r2> (average value of r2) Å2
<r2> 85.837
(<r2>)1/2 9.265