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

using model chemistry: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1Ag
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-200.129251
Energy at 298.15K-200.130180
HF Energy-200.129251
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy29.796162
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 HF/daug-cc-pVTZ
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' 4429 4006 160.01      
2 A' 4373 3956 460.33      
3 A' 497 449 212.92      
4 A' 195 176 144.34      
5 A' 135 122 7.25      
6 A" 427 386 217.08      

Unscaled Zero Point Vibrational Energy (zpe) 5027.5 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 4547.9 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 HF/daug-cc-pVTZ
ABC
28.93716 0.21138 0.20985

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.137 0.585 0.000
F2 0.034 -1.347 0.000
H3 -0.745 -1.800 0.000
F4 0.034 1.482 0.000

Atom - Atom Distances (Å)
  H1 F2 H3 F4
H11.93392.54250.9030
F21.93390.90142.8282
H32.54250.90143.3728
F40.90302.82823.3728

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 123.254 H1 F4 H3 19.917
F2 H1 F4 170.380 F2 H3 F4 46.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.691      
2 F -0.552      
3 H 0.438      
4 F -0.577      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.455 -3.203 0.000 3.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.545 3.320 0.000
y 3.320 -11.158 0.000
z 0.000 0.000 -11.326
Traceless
 xyz
x 1.697 3.320 0.000
y 3.320 -0.722 0.000
z 0.000 0.000 -0.975
Polar
3z2-r2-1.949
x2-y21.613
xy3.320
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.389 0.072 0.000
y 0.072 1.631 0.000
z 0.000 0.000 1.266


<r2> (average value of r2) Å2
<r2> 46.922
(<r2>)1/2 6.850