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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-391.158554
Energy at 298.15K 
HF Energy-391.158554
Nuclear repulsion energy63.128363
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 mPW1PW91/6-31G(2df,p)
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 2254 2152 31.86 184.63 0.04 0.08
2 A1 1005 959 205.59 3.70 0.61 0.75
3 A1 891 851 29.87 5.27 0.35 0.52
4 E 2259 2157 140.93 49.25 0.75 0.86
4 E 2259 2157 140.95 49.25 0.75 0.86
5 E 958 915 81.20 12.11 0.75 0.86
5 E 958 915 81.21 12.11 0.75 0.86
6 E 728 695 53.60 7.54 0.75 0.86
6 E 728 695 53.60 7.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6020.3 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 5747.6 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 mPW1PW91/6-31G(2df,p)
ABC
2.82866 0.47650 0.47650

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.498
F2 0.000 0.000 -1.099
H3 0.000 1.404 0.973
H4 -1.216 -0.702 0.973
H5 1.216 -0.702 0.973

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.59631.48201.48201.4820
F21.59632.50212.50212.5021
H31.48202.50212.43172.4317
H41.48202.50212.43172.4317
H51.48202.50212.43172.4317

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.681 F2 Si1 H4 108.681
F2 Si1 H5 108.681 H3 Si1 H4 110.249
H3 Si1 H5 110.249 H4 Si1 H5 110.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.213      
2 F -0.241      
3 H 0.009      
4 H 0.009      
5 H 0.009      


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 1.118 1.118
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.359 0.000 0.000
y 0.000 -19.359 0.000
z 0.000 0.000 -20.228
Traceless
 xyz
x 0.434 0.000 0.000
y 0.000 0.434 0.000
z 0.000 0.000 -0.869
Polar
3z2-r2-1.738
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 3.578 0.000 0.000
y 0.000 3.579 0.000
z 0.000 0.000 3.148


<r2> (average value of r2) Å2
<r2> 35.353
(<r2>)1/2 5.946