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

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-2650.082877
Energy at 298.15K-2650.086850
HF Energy-2650.082877
Nuclear repulsion energy93.021523
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 mPW1PW91/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' 3825 3666 92.23      
2 A' 1193 1143 45.42      
3 A' 660 633 11.17      

Unscaled Zero Point Vibrational Energy (zpe) 2839.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 2720.7 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 mPW1PW91/aug-cc-pVDZ
ABC
20.43486 0.34970 0.34382

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.919 1.684 0.000
O2 0.021 1.459 0.000
Br3 0.021 -0.382 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H10.96692.2693
O20.96691.8410
Br32.26931.8410

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 103.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.161      
2 O -0.519      
3 Br 0.358      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.425 0.014 0.000 1.425
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.919 -3.086 0.000
y -3.086 -21.874 0.000
z 0.000 0.000 -25.253
Traceless
 xyz
x 0.645 -3.086 0.000
y -3.086 2.212 0.000
z 0.000 0.000 -2.857
Polar
3z2-r2-5.713
x2-y2-1.045
xy-3.086
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.598 -0.161 0.000
y -0.161 5.181 0.000
z 0.000 0.000 3.454


<r2> (average value of r2) Å2
<r2> 40.419
(<r2>)1/2 6.358