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All results from a given calculation for HBr (hydrogen bromide)

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-2574.867023
Energy at 298.15K-2574.870000
HF Energy-2574.867023
Nuclear repulsion energy13.060372
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 wB97X-D/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2688 2572 12.87      

Unscaled Zero Point Vibrational Energy (zpe) 1344.1 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 1285.8 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 wB97X-D/aug-cc-pVTZ
B
8.42355

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.379
Br2 0.000 0.000 0.039

Atom - Atom Distances (Å)
  H1 Br2
H11.4188
Br21.4188

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.056      
2 Br -0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.866 0.866
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.901 0.000 0.000
y 0.000 -19.901 0.000
z 0.000 0.000 -15.769
Traceless
 xyz
x -2.066 0.000 0.000
y 0.000 -2.066 0.000
z 0.000 0.000 4.132
Polar
3z2-r28.265
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.511 0.000 0.000
y 0.000 3.511 0.000
z 0.000 0.000 3.759


<r2> (average value of r2) Å2
<r2> 13.525
(<r2>)1/2 3.678