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All results from a given calculation for HSiF (fluorosilylene)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-389.739788
Energy at 298.15K 
HF Energy-389.739788
Nuclear repulsion energy47.580712
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 PBEPBE/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 1888 1865 360.99 224.57 0.40 0.57
2 A' 830 820 65.30 24.80 0.73 0.85
3 A' 804 795 98.51 7.38 0.64 0.78

Unscaled Zero Point Vibrational Energy (zpe) 1761.4 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 1740.1 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 PBEPBE/Def2TZVPP
ABC
7.31223 0.54501 0.50721

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.064 -0.606 0.000
F2 0.064 1.028 0.000
H3 -1.483 -0.774 0.000

Atom - Atom Distances (Å)
  Si1 F2 H3
Si11.63361.5562
F21.63362.3748
H31.55622.3748

picture of fluorosilylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 96.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.352      
2 F -0.254      
3 H -0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.106 -0.942 0.000 0.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.754 0.633 0.000
y 0.633 -19.994 0.000
z 0.000 0.000 -16.213
Traceless
 xyz
x -2.651 0.633 0.000
y 0.633 -1.510 0.000
z 0.000 0.000 4.161
Polar
3z2-r28.322
x2-y2-0.760
xy0.633
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.185 0.254 0.000
y 0.254 4.130 0.000
z 0.000 0.000 3.915


<r2> (average value of r2) Å2
<r2> 29.398
(<r2>)1/2 5.422