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All results from a given calculation for F2 (Fluorine diatomic)

using model chemistry: mPW1PW91/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at mPW1PW91/CEP-31G*
 hartrees
Energy at 0K-48.197350
Energy at 298.15K-48.197369
HF Energy-48.197350
Nuclear repulsion energy18.689971
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 1106 1051 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 553.0 cm-1
Scaled (by 0.9499) Zero Point Vibrational Energy (zpe) 525.3 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/CEP-31G*
B
0.92200

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/CEP-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.694
F2 0.000 0.000 -0.694

Atom - Atom Distances (Å)
  F1 F2
F11.3874
F21.3874

picture of Fluorine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F 0.000      
2 F 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.452 0.000 0.000
y 0.000 -9.452 0.000
z 0.000 0.000 -8.690
Traceless
 xyz
x -0.381 0.000 0.000
y 0.000 -0.381 0.000
z 0.000 0.000 0.762
Polar
3z2-r21.524
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 0.385 0.000 0.000
y 0.000 0.385 0.000
z 0.000 0.000 1.571


<r2> (average value of r2) Å2
<r2> 12.481
(<r2>)1/2 3.533