return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for PS (phosphorus sulfide)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-738.237494
Energy at 298.15K-738.237294
HF Energy-738.159336
Nuclear repulsion energy61.023885
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 389 375 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 194.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 187.5 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 MP2/SDD
B
0.24739

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.007
P2 0.000 0.000 -1.074

Atom - Atom Distances (Å)
  S1 P2
S12.0812
P22.0812

picture of phosphorus sulfide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability