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All results from a given calculation for PF (phosphorus monofluoride)

using model chemistry: QCISD/3-21G

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 1Δ

State 1 (3Σ)

Jump to S2C1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-438.052980
Energy at 298.15K-438.053302
HF Energy-437.896489
Nuclear repulsion energy42.623589
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/3-21G
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 824 798 27.82      

Unscaled Zero Point Vibrational Energy (zpe) 411.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 399.1 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/3-21G
B
0.50962

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.629
F2 0.000 0.000 -1.048

Atom - Atom Distances (Å)
  P1 F2
P11.6760
F21.6760

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (1Δ)

Jump to S1C1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-438.001570
Energy at 298.15K-438.001891
Nuclear repulsion energy42.603301
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/3-21G
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 822 796 24.55      

Unscaled Zero Point Vibrational Energy (zpe) 410.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 398.2 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 QCISD/3-21G
B
0.50913

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.629
F2 0.000 0.000 -1.048

Atom - Atom Distances (Å)
  P1 F2
P11.6768
F21.6768

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability