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All results from a given calculation for PI3 (Phosphorus triiodide)

using model chemistry: MP3/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/cc-pVTZ-PP
 hartrees
Energy at 0K-1225.581095
Energy at 298.15K 
HF Energy-1224.798501
Nuclear repulsion energy500.861058
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 MP3/cc-pVTZ-PP
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 322 322 3.07      
2 A1 116 116 0.00      
3 E 354 354 52.59      
3 E 354 354 52.59      
4 E 79 79 0.01      
4 E 79 79 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 651.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 651.3 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 MP3/cc-pVTZ-PP
ABC
0.01748 0.01748 0.00905

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ-PP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.988
I2 0.000 2.211 -0.093
I3 1.915 -1.106 -0.093
I4 -1.915 -1.106 -0.093

Atom - Atom Distances (Å)
  P1 I2 I3 I4
P12.46182.46182.4618
I22.46183.83043.8304
I32.46183.83043.8304
I42.46183.83043.8304

picture of Phosphorus triiodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
I2 P1 I3 102.147 I2 P1 I4 102.147
I3 P1 I4 102.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability