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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-391.158905
Energy at 298.15K 
HF Energy-391.158905
Nuclear repulsion energy61.627552
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 mPW1PW91/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 2242 2148 27.28 237.50 0.04 0.08
2 A1 995 953 205.50 9.27 0.66 0.79
3 A1 856 820 34.51 5.52 0.46 0.63
4 E 2255 2161 133.59 63.00 0.75 0.86
4 E 2255 2161 133.61 62.99 0.75 0.86
5 E 941 901 85.28 18.84 0.75 0.86
5 E 941 901 85.28 18.84 0.75 0.86
6 E 717 687 53.88 13.39 0.75 0.86
6 E 717 687 53.88 13.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5959.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 5710.8 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 mPW1PW91/cc-pVDZ
ABC
2.77523 0.45080 0.45080

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.517
F2 0.000 0.000 -1.131
H3 0.000 1.417 0.980
H4 -1.228 -0.709 0.980
H5 1.228 -0.709 0.980

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.64811.49111.49111.4911
F21.64812.54272.54272.5427
H31.49112.54272.45502.4550
H41.49112.54272.45502.4550
H51.49112.54272.45502.4550

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.083 F2 Si1 H4 108.083
F2 Si1 H5 108.083 H3 Si1 H4 110.823
H3 Si1 H5 110.823 H4 Si1 H5 110.823
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.545      
2 F -0.346      
3 H -0.066      
4 H -0.066      
5 H -0.066      


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 1.572 1.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.537 0.000 0.000
y 0.000 -19.537 0.000
z 0.000 0.000 -20.719
Traceless
 xyz
x 0.591 0.000 0.000
y 0.000 0.591 0.000
z 0.000 0.000 -1.182
Polar
3z2-r2-2.363
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 3.687 0.000 0.000
y 0.000 3.687 0.000
z 0.000 0.000 3.105


<r2> (average value of r2) Å2
<r2> 36.613
(<r2>)1/2 6.051