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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-104.959503
Energy at 298.15K 
HF Energy-104.959503
Nuclear repulsion energy21.983460
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/LANL2DZ
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 2370 2132 36.40 243.42 0.04 0.09
2 A1 1054 949 292.87 21.24 0.68 0.81
3 A1 819 737 71.47 5.39 0.39 0.56
4 E 2381 2143 133.93 69.92 0.75 0.86
4 E 2381 2143 133.93 69.92 0.75 0.86
5 E 1038 934 119.91 37.83 0.75 0.86
5 E 1038 934 119.91 37.83 0.75 0.86
6 E 754 678 81.95 17.62 0.75 0.86
6 E 754 678 81.95 17.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6294.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 5664.1 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/LANL2DZ
ABC
2.85547 0.44005 0.44005

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.529
F2 0.000 0.000 -1.147
H3 0.000 1.397 0.971
H4 -1.210 -0.699 0.971
H5 1.210 -0.699 0.971

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.67631.46561.46561.4656
F21.67632.53782.53782.5378
H31.46562.53782.42032.4203
H41.46562.53782.42032.4203
H51.46562.53782.42032.4203

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 107.559 F2 Si1 H4 107.559
F2 Si1 H5 107.559 H3 Si1 H4 111.314
H3 Si1 H5 111.314 H4 Si1 H5 111.314
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.134      
2 F -0.643      
3 H -0.164      
4 H -0.164      
5 H -0.164      


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 2.883 2.883
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.720 0.000 0.000
y 0.000 -18.720 0.000
z 0.000 0.000 -21.454
Traceless
 xyz
x 1.367 0.000 0.000
y 0.000 1.367 0.000
z 0.000 0.000 -2.734
Polar
3z2-r2-5.469
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 2.754 0.000 0.000
y 0.000 2.754 0.000
z 0.000 0.000 2.356


<r2> (average value of r2) Å2
<r2> 33.911
(<r2>)1/2 5.823