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All results from a given calculation for HOBr (Hypobromous acid)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-2635.235435
Energy at 298.15K-2635.239449
HF Energy-2635.235435
Nuclear repulsion energy93.607921
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/3-21G*
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' 3804 3434 60.34      
2 A' 1290 1164 46.60      
3 A' 741 669 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 2917.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 2633.5 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 HF/3-21G*
ABC
20.80721 0.35451 0.34857

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.913 1.717 0.000
O2 0.021 1.446 0.000
Br3 0.021 -0.379 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.97232.2947
O20.97231.8251
Br32.29471.8251

picture of Hypobromous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 Br3 106.178
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.411      
2 O -0.572      
3 Br 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.879 -0.203 0.000 1.890
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.285 -3.685 0.000
y -3.685 -21.461 0.000
z 0.000 0.000 -24.366
Traceless
 xyz
x 0.628 -3.685 0.000
y -3.685 1.865 0.000
z 0.000 0.000 -2.493
Polar
3z2-r2-4.986
x2-y2-0.824
xy-3.685
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.000 -0.341 0.000
y -0.341 4.014 0.000
z 0.000 0.000 1.538


<r2> (average value of r2) Å2
<r2> 39.739
(<r2>)1/2 6.304