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All results from a given calculation for PBr3 (Phosphorus tribromide)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-45.094519
Energy at 298.15K-45.103419
HF Energy-45.094519
Nuclear repulsion energy44.179881
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 336 302 19.56      
2 A1 143 129 1.23      
3 E 365 328 60.06      
3 E 365 328 60.06      
4 E 102 91 0.17      
4 E 102 91 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 705.4 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 634.8 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 HF/LANL2DZ
ABC
0.02941 0.02941 0.01559

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.953
Br2 0.000 2.137 -0.136
Br3 1.851 -1.069 -0.136
Br4 -1.851 -1.069 -0.136

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.39862.39862.3986
Br22.39863.70163.7016
Br32.39863.70163.7016
Br42.39863.70163.7016

picture of Phosphorus tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 P1 Br3 100.995 Br2 P1 Br4 100.995
Br3 P1 Br4 100.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.391      
2 Br -0.130      
3 Br -0.130      
4 Br -0.130      


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 1.249 1.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.789 0.000 0.000
y 0.000 -62.789 0.000
z 0.000 0.000 -59.565
Traceless
 xyz
x -1.612 0.000 0.000
y 0.000 -1.612 0.000
z 0.000 0.000 3.224
Polar
3z2-r26.448
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 13.722 0.000 0.000
y 0.000 13.722 0.000
z 0.000 0.000 4.863


<r2> (average value of r2) Å2
<r2> 139.387
(<r2>)1/2 11.806