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

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-1232.800739
Energy at 298.15K 
HF Energy-1230.786178
Nuclear repulsion energy502.247009
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 QCISD(T)=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 314 314        
2 A1 107 107        
3 E 342 342        
3 E 342 342        
4 E 74 74        
4 E 72 72        

Unscaled Zero Point Vibrational Energy (zpe) 625.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 625.3 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 QCISD(T)=FULL/Def2TZVPP
ABC
0.01757 0.01757 0.00910

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=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 2.206 -0.093
I3 1.910 -1.103 -0.093
I4 -1.910 -1.103 -0.093

Atom - Atom Distances (Å)
  P1 I2 I3 I4
P12.45502.45502.4550
I22.45503.82013.8201
I32.45503.82013.8201
I42.45503.82013.8201

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 102.159 I2 P1 I4 102.159
I3 P1 I4 102.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability