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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-2637.142426
Energy at 298.15K-2637.146364
HF Energy-2637.142426
Nuclear repulsion energy89.494328
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 B3LYP/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' 3383 3264 11.60      
2 A' 1209 1167 37.44      
3 A' 598 577 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 2595.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 2503.9 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 B3LYP/3-21G
ABC
18.76103 0.32373 0.31823

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.959 1.738 0.000
O2 0.022 1.518 0.000
Br3 0.022 -0.397 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H11.00552.3488
O21.00551.9144
Br32.34881.9144

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 102.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.359      
2 O -0.521      
3 Br 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.862 -0.157 0.000 1.868
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.234 -3.308 0.000
y -3.308 -21.707 0.000
z 0.000 0.000 -24.308
Traceless
 xyz
x 0.773 -3.308 0.000
y -3.308 1.564 0.000
z 0.000 0.000 -2.337
Polar
3z2-r2-4.675
x2-y2-0.527
xy-3.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.252 -0.395 0.000
y -0.395 3.842 0.000
z 0.000 0.000 0.567


<r2> (average value of r2) Å2
<r2> 42.103
(<r2>)1/2 6.489