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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-2637.101158
Energy at 298.15K-2637.105106
HF Energy-2637.101158
Nuclear repulsion energy90.056083
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 B3PW91/3-21G
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' 3440 3306 16.66      
2 A' 1219 1171 39.82      
3 A' 614 590 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 2635.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 2533.6 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 B3PW91/3-21G
ABC
18.95779 0.32790 0.32232

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.954 1.732 0.000
O2 0.022 1.508 0.000
Br3 0.022 -0.394 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H11.00162.3391
O21.00161.9018
Br32.33911.9018

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 102.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.372      
2 O -0.541      
3 Br 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.908 -0.140 0.000 1.914
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.205 -3.387 0.000
y -3.387 -21.699 0.000
z 0.000 0.000 -24.318
Traceless
 xyz
x 0.803 -3.387 0.000
y -3.387 1.562 0.000
z 0.000 0.000 -2.365
Polar
3z2-r2-4.731
x2-y2-0.506
xy-3.387
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.232 -0.374 0.000
y -0.374 3.772 0.000
z 0.000 0.000 0.573


<r2> (average value of r2) Å2
<r2> 41.754
(<r2>)1/2 6.462