return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-2647.785014
Energy at 298.15K-2647.789030
HF Energy-2647.785014
Nuclear repulsion energy94.810832
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/aug-cc-pVDZ
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' 4136 3766 131.43      
2 A' 1295 1179 44.32      
3 A' 737 671 14.58      

Unscaled Zero Point Vibrational Energy (zpe) 3083.8 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 2808.1 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/aug-cc-pVDZ
ABC
21.89793 0.36305 0.35713

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.889 1.690 0.000
O2 0.021 1.429 0.000
Br3 0.021 -0.375 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.94672.2567
O20.94671.8041
Br32.25671.8041

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 106.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.167      
2 O -0.649      
3 Br 0.482      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.507 -0.007 0.000 1.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.031 -3.251 0.000
y -3.251 -22.017 0.000
z 0.000 0.000 -25.302
Traceless
 xyz
x 0.629 -3.251 0.000
y -3.251 2.149 0.000
z 0.000 0.000 -2.778
Polar
3z2-r2-5.556
x2-y2-1.014
xy-3.251
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.349 -0.162 0.000
y -0.162 5.055 0.000
z 0.000 0.000 3.206


<r2> (average value of r2) Å2
<r2> 39.571
(<r2>)1/2 6.291