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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-390.222133
Energy at 298.15K 
HF Energy-390.222133
Nuclear repulsion energy63.676919
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 HF/6-311+G(3df,2p)
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 2145 35.77 269.12 0.03 0.06
2 A1 1069 971 219.07 1.68 0.70 0.83
3 A1 917 833 95.39 3.00 0.33 0.50
4 E 2350 2135 174.35 46.43 0.75 0.86
4 E 2350 2135 174.35 46.43 0.75 0.86
5 E 1042 947 111.44 6.06 0.75 0.86
5 E 1042 947 111.44 6.06 0.75 0.86
6 E 781 710 70.42 5.06 0.75 0.86
6 E 781 710 70.42 5.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6346.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 5766.6 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 HF/6-311+G(3df,2p)
ABC
2.86458 0.48523 0.48523

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.495
F2 0.000 0.000 -1.088
H3 0.000 1.395 0.955
H4 -1.208 -0.698 0.955
H5 1.208 -0.698 0.955

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.58321.46901.46901.4690
F21.58322.47402.47402.4740
H31.46902.47402.41642.4164
H41.46902.47402.41642.4164
H51.46902.47402.41642.4164

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.247 F2 Si1 H4 108.247
F2 Si1 H5 108.247 H3 Si1 H4 110.667
H3 Si1 H5 110.667 H4 Si1 H5 110.667
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.816      
2 F -0.503      
3 H -0.105      
4 H -0.105      
5 H -0.105      


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 1.363 1.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.791 0.000 0.000
y 0.000 -19.791 0.000
z 0.000 0.000 -21.163
Traceless
 xyz
x 0.686 0.000 0.000
y 0.000 0.686 0.000
z 0.000 0.000 -1.372
Polar
3z2-r2-2.743
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 3.842 0.000 0.000
y 0.000 3.842 0.000
z 0.000 0.000 3.417


<r2> (average value of r2) Å2
<r2> 35.310
(<r2>)1/2 5.942