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

using model chemistry: MP2/aug-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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-8058.504639
Energy at 298.15K-8058.513738
HF Energy-8057.963595
Nuclear repulsion energy928.997118
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/aug-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 391 375 10.87      
2 A1 159 153 0.05      
3 E 393 377 96.93      
3 E 393 377 96.93      
4 E 112 107 0.00      
4 E 112 107 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 779.6 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 747.6 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/aug-cc-pVDZ
ABC
0.03333 0.03333 0.01769

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.903
Br2 0.000 2.006 -0.129
Br3 1.738 -1.003 -0.129
Br4 -1.738 -1.003 -0.129

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.25642.25642.2564
Br22.25643.47513.4751
Br32.25643.47513.4751
Br42.25643.47513.4751

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 100.718 Br2 P1 Br4 100.718
Br3 P1 Br4 100.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability