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

using model chemistry: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-2647.130031
Energy at 298.15K-2647.134005
HF Energy-2647.003822
Nuclear repulsion energy94.161582
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 B2PLYP/6-31G(2df,p)
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' 3803 3632 80.76      
2 A' 1205 1151 50.59      
3 A' 665 635 10.62      

Unscaled Zero Point Vibrational Energy (zpe) 2836.6 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 2708.9 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 B2PLYP/6-31G(2df,p)
ABC
20.45132 0.35885 0.35267

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.917 1.663 0.000
O2 0.021 1.437 0.000
Br3 0.021 -0.376 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.96492.2444
O20.96491.8135
Br32.24441.8135

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 103.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.340      
2 O -0.551      
3 Br 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.432 0.176 0.000 1.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.468 -3.013 0.000
y -3.013 -21.491 0.000
z 0.000 0.000 -24.694
Traceless
 xyz
x 0.625 -3.013 0.000
y -3.013 2.090 0.000
z 0.000 0.000 -2.715
Polar
3z2-r2-5.429
x2-y2-0.977
xy-3.013
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.136 -0.213 0.000
y -0.213 4.557 0.000
z 0.000 0.000 2.879


<r2> (average value of r2) Å2
<r2> 39.491
(<r2>)1/2 6.284