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

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-8064.389271
Energy at 298.15K-8064.398378
HF Energy-8064.389271
Nuclear repulsion energy930.122323
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 mPW1PW91/cc-pVDZ
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 395 379 14.91      
2 A1 159 152 0.11      
3 E 401 384 110.15      
3 E 401 384 110.15      
4 E 110 106 0.00      
4 E 110 106 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 787.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 755.1 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 mPW1PW91/cc-pVDZ
ABC
0.03337 0.03337 0.01766

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.882
Br2 0.000 2.008 -0.126
Br3 1.739 -1.004 -0.126
Br4 -1.739 -1.004 -0.126

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.24672.24672.2467
Br22.24673.47803.4780
Br32.24673.47803.4780
Br42.24673.47803.4780

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 101.437 Br2 P1 Br4 101.437
Br3 P1 Br4 101.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.317      
2 Br -0.106      
3 Br -0.106      
4 Br -0.106      


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 0.526 0.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.868 0.000 0.000
y 0.000 -66.868 0.000
z 0.000 0.000 -66.771
Traceless
 xyz
x -0.049 0.000 0.000
y 0.000 -0.049 0.000
z 0.000 0.000 0.097
Polar
3z2-r20.194
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 12.288 0.000 0.000
y 0.000 12.288 0.000
z 0.000 0.000 6.934


<r2> (average value of r2) Å2
<r2> 478.453
(<r2>)1/2 21.874