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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-88.291967
Energy at 298.15K-88.295938
HF Energy-88.291967
Nuclear repulsion energy21.681023
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/LANL2DZ
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' 4009 3607 101.13      
2 A' 1252 1126 27.36      
3 A' 658 592 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 2958.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 2662.8 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/LANL2DZ
ABC
22.25588 0.33116 0.32630

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.884 1.813 0.000
O2 0.021 1.493 0.000
Br3 0.021 -0.393 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.95942.3846
O20.95941.8857
Br32.38461.8857

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 109.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.427      
2 O -0.703      
3 Br 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.206 -0.570 0.000 2.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.818 -4.137 0.000
y -4.137 -19.371 0.000
z 0.000 0.000 -21.977
Traceless
 xyz
x 0.856 -4.137 0.000
y -4.137 1.526 0.000
z 0.000 0.000 -2.383
Polar
3z2-r2-4.765
x2-y2-0.447
xy-4.137
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.802 -0.311 0.000
y -0.311 4.841 0.000
z 0.000 0.000 0.224


<r2> (average value of r2) Å2
<r2> 35.716
(<r2>)1/2 5.976