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

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 1A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-2646.982833
Energy at 298.15K-2646.986771
HF Energy-2646.982833
Nuclear repulsion energy91.262710
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' 3608 3556 50.33      
2 A' 1184 1167 49.88      
3 A' 608 599 4.94      

Unscaled Zero Point Vibrational Energy (zpe) 2699.8 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 2661.2 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 PBEPBE/6-31G*
ABC
19.28262 0.33659 0.33082

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 -0.945 1.675 0.000
O2 0.022 1.491 0.000
Br3 0.022 -0.389 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.98402.2784
O20.98401.8796
Br32.27841.8796

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 100.756
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 0.421      
2 O -0.546      
3 Br 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.567 -0.041 0.000 1.567
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.429 -3.133 0.000
y -3.133 -21.351 0.000
z 0.000 0.000 -24.706
Traceless
 xyz
x 0.599 -3.133 0.000
y -3.133 2.217 0.000
z 0.000 0.000 -2.816
Polar
3z2-r2-5.632
x2-y2-1.078
xy-3.133
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.520 -0.232 0.000
y -0.232 4.212 0.000
z 0.000 0.000 2.114


<r2> (average value of r2) Å2
<r2> 41.045
(<r2>)1/2 6.407