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

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-8055.406164
Energy at 298.15K-8055.415301
HF Energy-8055.406164
Nuclear repulsion energy940.075011
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 PBE1PBE/6-31G**
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 407 388 15.29      
2 A1 160 152 0.24      
3 E 421 401 104.12      
3 E 421 401 104.11      
4 E 107 102 0.03      
4 E 107 102 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 811.4 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 773.4 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 PBE1PBE/6-31G**
ABC
0.03410 0.03410 0.01805

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.876
Br2 0.000 1.986 -0.125
Br3 1.720 -0.993 -0.125
Br4 -1.720 -0.993 -0.125

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.22412.22412.2241
Br22.22413.44003.4400
Br32.22413.44003.4400
Br42.22413.44003.4400

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 101.310 Br2 P1 Br4 101.310
Br3 P1 Br4 101.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.569      
2 Br -0.190      
3 Br -0.190      
4 Br -0.190      


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 0.426 0.426
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.546 0.000 0.000
y 0.000 -66.546 0.000
z 0.000 0.000 -66.802
Traceless
 xyz
x 0.128 0.000 0.000
y 0.000 0.128 0.000
z 0.000 0.000 -0.257
Polar
3z2-r2-0.513
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 12.584 0.000 0.000
y 0.000 12.584 0.000
z 0.000 0.000 7.695


<r2> (average value of r2) Å2
<r2> 468.935
(<r2>)1/2 21.655