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All results from a given calculation for P4 (Phosphorus tetramer)

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1363.389281
Energy at 298.15K-1363.391851
HF Energy-1362.898119
Nuclear repulsion energy 
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 CCSD(T)/6-31G*
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 620 596        
2 E 367 353        
2 E 367 353        
3 T2 470 452        
3 T2 470 452        
3 T2 470 452        

Unscaled Zero Point Vibrational Energy (zpe) 1381.8 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 1329.5 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 CCSD(T)/6-31G*
ABC
0.11152 0.11152 0.11152

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.781 0.781 0.781
P2 -0.781 -0.781 0.781
P3 -0.781 0.781 -0.781
P4 0.781 -0.781 -0.781

Atom - Atom Distances (Å)
  P1 P2 P3 P4
P12.20912.20912.2091
P22.20912.20912.2091
P32.20912.20912.2091
P42.20912.20912.2091

picture of Phosphorus tetramer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 P3 60.000 P1 P2 P4 60.000
P1 P3 P2 60.000 P1 P3 P4 60.000
P1 P4 P2 60.000 P1 P4 P3 60.000
P2 P1 P3 60.000 P2 P1 P4 60.000
P2 P3 P4 60.000 P2 P4 P3 60.000
P3 P1 P4 60.000 P3 P2 P4 60.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability