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All results from a given calculation for H2F2 (Hydrogen fluoride dimer)

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1Ag
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-200.671890
Energy at 298.15K-200.673420
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy32.728968
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3827 3775 284.73      
2 A' 3763 3711 0.00      
3 A' 869 857 0.00      
4 A' 292 288 599.70      
5 A' 267 264 0.22      
6 A" 546 539 280.02      

Unscaled Zero Point Vibrational Energy (zpe) 4782.0 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 4716.5 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/6-31G**
ABC
19.37034 0.28764 0.28343

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.661 -0.562 0.000
F2 0.000 1.235 0.000
H3 0.660 0.561 0.000
F4 0.000 -1.235 0.000

Atom - Atom Distances (Å)
  H1 F2 H3 F4
H11.91531.73430.9435
F21.91530.94352.4702
H31.73430.94351.9133
F40.94352.47021.9133

picture of Hydrogen fluoride dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 F2 H3 64.588 H1 F4 H3 64.697
F2 H1 F4 115.272 F2 H3 F4 115.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.349      
2 F -0.349      
3 H 0.349      
4 F -0.349      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.004 -0.005 0.000 0.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -8.671 1.014 0.000
y 1.014 -14.591 0.000
z 0.000 0.000 -10.829
Traceless
 xyz
x 4.039 1.014 0.000
y 1.014 -4.841 0.000
z 0.000 0.000 0.802
Polar
3z2-r21.603
x2-y25.920
xy1.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.102 -0.075 0.000
y -0.075 1.452 0.000
z 0.000 0.000 0.596


<r2> (average value of r2) Å2
<r2> 36.059
(<r2>)1/2 6.005