return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HOF (Hypofluorous acid)

using model chemistry: QCISD(T)/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/TZVP
 hartrees
Energy at 0K-175.249050
Energy at 298.15K 
HF Energy-174.804394
Nuclear repulsion energy33.167924
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 QCISD(T)/TZVP
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' 3754 3615        
2 A' 1361 1311        
3 A' 889 856        

Unscaled Zero Point Vibrational Energy (zpe) 3001.6 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 2891.2 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 QCISD(T)/TZVP
ABC
19.40792 0.87918 0.84108

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.054 0.719 0.000
H2 -0.910 0.845 0.000
F3 0.054 -0.733 0.000

Atom - Atom Distances (Å)
  O1 H2 F3
O10.97161.4523
H20.97161.8489
F31.45231.8489

picture of Hypofluorous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 F3 97.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability