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

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-8059.256690
Energy at 298.15K-8059.265898
HF Energy-8058.206987
Nuclear repulsion energy950.306201
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 MP2=FULL/aug-cc-pVTZ
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 412 392 11.37      
2 A1 168 160 0.07      
3 E 423 402 97.30      
3 E 423 402 97.30      
4 E 117 111 0.00      
4 E 117 111 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 829.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 789.5 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 MP2=FULL/aug-cc-pVTZ
ABC
0.03488 0.03488 0.01851

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.890
Br2 0.000 1.953 -0.127
Br3 1.691 -0.976 -0.127
Br4 -1.691 -0.976 -0.127

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.20152.20152.2015
Br22.20153.38213.3821
Br32.20153.38213.3821
Br42.20153.38213.3821

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 100.373 Br2 P1 Br4 100.373
Br3 P1 Br4 100.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability