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

using model chemistry: HF/cc-pVTZ-PP

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 HF/cc-pVTZ-PP
 hartrees
Energy at 0K-416.093395
Energy at 298.15K 
HF Energy-416.093395
Nuclear repulsion energy9.412614
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 HF/cc-pVTZ-PP
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 2785 2785 10.58 136.05 0.28 0.44

Unscaled Zero Point Vibrational Energy (zpe) 1392.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1392.6 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 HF/cc-pVTZ-PP
B
8.57552

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ-PP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.000 -1.366
Br2 0.000 0.000 0.039

Atom - Atom Distances (Å)
  H1 Br2
H11.4055
Br21.4055

picture of hydrogen bromide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.139      
2 Br -0.139      


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 -0.961 0.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.647 0.000 0.000
y 0.000 -19.647 0.000
z 0.000 0.000 -15.463
Traceless
 xyz
x -2.092 0.000 0.000
y 0.000 -2.092 0.000
z 0.000 0.000 4.184
Polar
3z2-r28.367
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 2.350 0.000 0.000
y 0.000 2.350 0.000
z 0.000 0.000 3.097


<r2> (average value of r2) Å2
<r2> 13.305
(<r2>)1/2 3.648