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

using model chemistry: BLYP/6-311G**

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 BLYP/6-311G**
 hartrees
Energy at 0K-2574.748412
Energy at 298.15K-2574.751389
HF Energy-2574.748412
Nuclear repulsion energy12.876459
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 BLYP/6-311G**
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 2486 2477 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 1243.1 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 1238.3 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 BLYP/6-311G**
B
8.18798

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.398
Br2 0.000 0.000 0.040

Atom - Atom Distances (Å)
  H1 Br2
H11.4384
Br21.4384

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.119      
2 Br -0.119      


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 -1.038 1.038
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.022 0.000 0.000
y 0.000 -20.022 0.000
z 0.000 0.000 -15.783
Traceless
 xyz
x -2.119 0.000 0.000
y 0.000 -2.119 0.000
z 0.000 0.000 4.239
Polar
3z2-r28.478
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 1.616 0.000 0.000
y 0.000 1.616 0.000
z 0.000 0.000 2.836


<r2> (average value of r2) Å2
<r2> 13.634
(<r2>)1/2 3.692