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All results from a given calculation for HSiF (fluorosilylene)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-389.785133
Energy at 298.15K-389.781229
HF Energy-389.939497
Nuclear repulsion energy48.194900
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 B3LYP/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 A' 1948 1880 386.95 174.66 0.48 0.65
2 A' 883 852 114.72 13.98 0.75 0.86
3 A' 857 827 49.53 8.19 0.58 0.73

Unscaled Zero Point Vibrational Energy (zpe) 1843.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1779.4 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 B3LYP/6-31G(2df,p)
ABC
7.46009 0.55938 0.52036

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.064 -0.597 0.000
F2 0.064 1.015 0.000
H3 -1.469 -0.783 0.000

Atom - Atom Distances (Å)
  Si1 F2 H3
Si11.61161.5439
F21.61162.3624
H31.54392.3624

picture of fluorosilylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 96.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.240      
2 F -0.194      
3 H -0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.260 -0.743 0.000 0.787
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 28.769
(<r2>)1/2 5.364