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All results from a given calculation for PCl (phosphorus chloride)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
2 1 yes C*V 1Σ

State 1 (3Σ)

Jump to S2C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-800.422550
Energy at 298.15K-800.422802
HF Energy-800.197402
Nuclear repulsion energy65.860942
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/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 Σ 543 517 72.42      

Unscaled Zero Point Vibrational Energy (zpe) 271.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 258.4 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/6-31G*
B
0.24449

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 -1.088
Cl2 0.000 0.000 0.960

Atom - Atom Distances (Å)
  P1 Cl2
P12.0489
Cl22.0489

picture of phosphorus chloride state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σ)

Jump to S1C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-800.372610
Energy at 298.15K-800.372874
Nuclear repulsion energy66.401797
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/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 Σ 561 534 73.44      

Unscaled Zero Point Vibrational Energy (zpe) 280.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 267.1 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/6-31G*
B
0.24852

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 -1.080
Cl2 0.000 0.000 0.953

Atom - Atom Distances (Å)
  P1 Cl2
P12.0322
Cl22.0322

picture of phosphorus chloride state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability