return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/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 CID/Def2TZVPP
 hartrees
Energy at 0K-1232.011299
Energy at 298.15K 
HF Energy-1230.785783
Nuclear repulsion energy506.971681
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 CID/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 337 337 3.63      
2 A1 123 123 0.00      
3 E 376 376 60.28      
3 E 376 376 60.28      
4 E 85 85 0.01      
4 E 85 85 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 690.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 690.2 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 CID/Def2TZVPP
ABC
0.01789 0.01789 0.00926

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.970
I2 0.000 2.186 -0.092
I3 1.893 -1.093 -0.092
I4 -1.893 -1.093 -0.092

Atom - Atom Distances (Å)
  P1 I2 I3 I4
P12.43042.43042.4304
I22.43043.78673.7867
I32.43043.78673.7867
I42.43043.78673.7867

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 102.345 I2 P1 I4 102.345
I3 P1 I4 102.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability