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

using model chemistry: LSDA/aug-cc-pVDZ

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 LSDA/aug-cc-pVDZ
 hartrees
Energy at 0K-2571.921546
Energy at 298.15K-2571.924523
HF Energy-2571.921546
Nuclear repulsion energy12.895757
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 LSDA/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 Σ 2557 2529 18.93      

Unscaled Zero Point Vibrational Energy (zpe) 1278.7 cm-1
Scaled (by 0.9887) Zero Point Vibrational Energy (zpe) 1264.3 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 LSDA/aug-cc-pVDZ
B
8.21254

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.396
Br2 0.000 0.000 0.040

Atom - Atom Distances (Å)
  H1 Br2
H11.4362
Br21.4362

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.022      
2 Br 0.022      


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 -0.923 0.923
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.036 0.000 0.000
y 0.000 -20.036 0.000
z 0.000 0.000 -15.738
Traceless
 xyz
x -2.149 0.000 0.000
y 0.000 -2.149 0.000
z 0.000 0.000 4.298
Polar
3z2-r28.595
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 3.240 0.000 0.000
y 0.000 3.240 0.000
z 0.000 0.000 3.650


<r2> (average value of r2) Å2
<r2> 13.625
(<r2>)1/2 3.691