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

using model chemistry: PBEPBEultrafine/TZVP

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 PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-2574.365727
Energy at 298.15K-2574.368704
HF Energy-2574.365727
Nuclear repulsion energy12.926840
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 PBEPBEultrafine/TZVP
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 2568 2539 5.77      

Unscaled Zero Point Vibrational Energy (zpe) 1283.9 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 1269.3 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 PBEPBEultrafine/TZVP
B
8.25218

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.393
Br2 0.000 0.000 0.040

Atom - Atom Distances (Å)
  H1 Br2
H11.4328
Br21.4328

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.144      
2 Br -0.144      


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 -1.065 1.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.997 0.000 0.000
y 0.000 -19.997 0.000
z 0.000 0.000 -15.629
Traceless
 xyz
x -2.184 0.000 0.000
y 0.000 -2.184 0.000
z 0.000 0.000 4.367
Polar
3z2-r28.735
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 1.705 0.000 0.000
y 0.000 1.705 0.000
z 0.000 0.000 2.865


<r2> (average value of r2) Å2
<r2> 13.576
(<r2>)1/2 3.685