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All results from a given calculation for SiHF3 (trifluorosilane)

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-589.762858
Energy at 298.15K 
HF Energy-589.762858
Nuclear repulsion energy183.429512
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 B1B95/cc-pVDZ
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 2361 2269 56.68 85.95 0.17 0.29
2 A1 831 799 74.85 4.72 0.00 0.00
3 A1 389 374 72.72 1.11 0.72 0.83
4 E 991 953 217.68 0.38 0.75 0.86
4 E 991 953 217.64 0.38 0.75 0.86
5 E 802 771 25.35 9.22 0.75 0.86
5 E 802 771 25.35 9.21 0.75 0.86
6 E 276 266 13.60 0.70 0.75 0.86
6 E 276 266 13.60 0.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3860.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 3710.7 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 B1B95/cc-pVDZ
ABC
0.22545 0.22545 0.12962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.338
H2 0.000 0.000 1.805
F3 0.000 1.511 -0.242
F4 1.308 -0.755 -0.242
F5 -1.308 -0.755 -0.242

Atom - Atom Distances (Å)
  Si1 H2 F3 F4 F5
Si11.46681.61821.61821.6182
H21.46682.54402.54402.5440
F31.61822.54402.61642.6164
F41.61822.54402.61642.6164
F51.61822.54402.61642.6164

picture of trifluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 F3 111.009 H2 Si1 F4 111.009
H2 Si1 F5 111.009 F3 Si1 F4 107.890
F3 Si1 F5 107.890 F4 Si1 F5 107.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.968      
2 H -0.074      
3 F -0.298      
4 F -0.298      
5 F -0.298      


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 1.643 1.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.333 0.000 0.000
y 0.000 -29.333 0.000
z 0.000 0.000 -25.381
Traceless
 xyz
x -1.976 0.000 0.000
y 0.000 -1.976 0.000
z 0.000 0.000 3.952
Polar
3z2-r27.904
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 2.738 0.000 0.000
y 0.000 2.739 -0.000
z 0.000 -0.000 2.834


<r2> (average value of r2) Å2
<r2> 85.548
(<r2>)1/2 9.249