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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-8055.159345
Energy at 298.15K-8055.168354
HF Energy-8055.159345
Nuclear repulsion energy926.207712
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 PBEPBE/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 386 381 11.96      
2 A1 148 146 0.12      
3 E 396 390 104.30      
3 E 396 390 104.32      
4 E 98 96 0.01      
4 E 98 96 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 760.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 749.7 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 PBEPBE/6-31G*
ABC
0.03307 0.03307 0.01747

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.873
Br2 0.000 2.019 -0.125
Br3 1.749 -1.010 -0.125
Br4 -1.749 -1.010 -0.125

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.25202.25202.2520
Br22.25203.49703.4970
Br32.25203.49703.4970
Br42.25203.49703.4970

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 101.869 Br2 P1 Br4 101.869
Br3 P1 Br4 101.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.494      
2 Br -0.165      
3 Br -0.165      
4 Br -0.165      


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 0.402 0.402
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.425 0.000 0.000
y 0.000 -66.425 0.000
z 0.000 0.000 -66.669
Traceless
 xyz
x 0.122 0.000 0.000
y 0.000 0.122 0.000
z 0.000 0.000 -0.244
Polar
3z2-r2-0.488
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 13.289 0.000 0.000
y 0.000 13.288 0.000
z 0.000 0.000 7.838


<r2> (average value of r2) Å2
<r2> 482.618
(<r2>)1/2 21.969