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

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-2645.457624
Energy at 298.15K-2645.461649
HF Energy-2645.457624
Nuclear repulsion energy96.595063
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/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' 4152 3759 125.04      
2 A' 1304 1181 53.99      
3 A' 765 692 16.50      

Unscaled Zero Point Vibrational Energy (zpe) 3109.9 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 2816.0 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/6-31G(2df,p)
ABC
22.19546 0.37753 0.37122

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.884 1.669 0.000
O2 0.021 1.400 0.000
Br3 0.021 -0.368 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.94352.2288
O20.94351.7682
Br32.22881.7682

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 106.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.365      
2 O -0.688      
3 Br 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.506 0.159 0.000 1.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.550 -3.179 0.000
y -3.179 -21.559 0.000
z 0.000 0.000 -24.732
Traceless
 xyz
x 0.596 -3.179 0.000
y -3.179 2.081 0.000
z 0.000 0.000 -2.677
Polar
3z2-r2-5.354
x2-y2-0.991
xy-3.179
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.025 -0.198 0.000
y -0.198 4.432 0.000
z 0.000 0.000 2.823


<r2> (average value of r2) Å2
<r2> 38.341
(<r2>)1/2 6.192