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

using model chemistry: MP2=FULL/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-1232.851558
Energy at 298.15K 
HF Energy-1230.785588
Nuclear repulsion energy508.305739
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/Def2TZVPP
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 330 330 3.25 11.22 0.01 0.03
2 A1 116 116 0.02 7.75 0.20 0.33
3 E 354 354 68.59 4.33 0.75 0.86
3 E 354 354 68.59 4.33 0.75 0.86
4 E 79 79 0.02 4.04 0.75 0.86
4 E 79 79 0.02 4.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 655.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 655.9 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/Def2TZVPP
ABC
0.01803 0.01803 0.00935

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.985
I2 0.000 2.176 -0.093
I3 1.885 -1.088 -0.093
I4 -1.885 -1.088 -0.093

Atom - Atom Distances (Å)
  P1 I2 I3 I4
P12.42892.42892.4289
I22.42893.76983.7698
I32.42893.76983.7698
I42.42893.76983.7698

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 101.798 I2 P1 I4 101.798
I3 P1 I4 101.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability