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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: mPW1PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-386.321609
Energy at 298.15K 
HF Energy-386.321609
Nuclear repulsion energy62.165723
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/STO-3G
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 2644 2323 17.05 66.98 0.04 0.08
2 A1 1128 992 205.18 8.95 0.70 0.82
3 A1 888 781 3.30 3.54 0.41 0.58
4 E 2693 2367 36.40 36.90 0.75 0.86
4 E 2693 2367 36.40 36.90 0.75 0.86
5 E 1113 979 67.10 21.38 0.75 0.86
5 E 1113 979 67.11 21.38 0.75 0.86
6 E 772 678 69.12 6.23 0.75 0.86
6 E 772 678 69.12 6.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6907.4 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 6070.9 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/STO-3G
ABC
3.01068 0.45219 0.45219

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.513
F2 0.000 0.000 -1.133
H3 0.000 1.361 1.006
H4 -1.179 -0.680 1.006
H5 1.179 -0.680 1.006

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.64641.44721.44721.4472
F21.64642.53502.53502.5350
H31.44722.53502.35712.3571
H41.44722.53502.35712.3571
H51.44722.53502.35712.3571

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.892 F2 Si1 H4 109.892
F2 Si1 H5 109.892 H3 Si1 H4 109.047
H3 Si1 H5 109.047 H4 Si1 H5 109.047
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.633      
2 F -0.243      
3 H -0.130      
4 H -0.130      
5 H -0.130      


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 0.646 0.646
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.465 0.000 0.000
y 0.000 -17.465 0.000
z 0.000 0.000 -18.631
Traceless
 xyz
x 0.583 0.000 0.000
y 0.000 0.583 0.000
z 0.000 0.000 -1.166
Polar
3z2-r2-2.331
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 1.438 0.000 0.000
y 0.000 1.438 0.000
z 0.000 0.000 1.674


<r2> (average value of r2) Å2
<r2> 34.985
(<r2>)1/2 5.915