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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2619.029396
Energy at 298.15K-2619.033429
HF Energy-2619.029396
Nuclear repulsion energy93.396807
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/STO-3G
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' 4187 3418 23.70      
2 A' 1500 1225 10.91      
3 A' 863 705 7.03      

Unscaled Zero Point Vibrational Energy (zpe) 3274.9 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 2674.0 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/STO-3G
ABC
18.96051 0.35423 0.34773

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.954 1.661 0.000
O2 0.022 1.451 0.000
Br3 0.022 -0.379 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.99842.2616
O20.99841.8300
Br32.26161.8300

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 102.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.198      
2 O -0.249      
3 Br 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.446 0.482 0.000 1.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.359 -2.346 0.000
y -2.346 -20.654 0.000
z 0.000 0.000 -21.836
Traceless
 xyz
x 0.886 -2.346 0.000
y -2.346 0.443 0.000
z 0.000 0.000 -1.329
Polar
3z2-r2-2.658
x2-y20.296
xy-2.346
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.656 -0.457 0.000
y -0.457 2.661 0.000
z 0.000 0.000 0.107


<r2> (average value of r2) Å2
<r2> 38.646
(<r2>)1/2 6.217