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All results from a given calculation for IF (Iodine monofluoride)

using model chemistry: MP4/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at MP4/CEP-31G
 hartrees
Energy at 0K-35.146446
Energy at 298.15K-35.144566
HF Energy-35.001712
Nuclear repulsion energy12.683007
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 MP4/CEP-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 509 480        

Unscaled Zero Point Vibrational Energy (zpe) 254.4 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 240.1 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 MP4/CEP-31G
B
0.24421

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/CEP-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.297
F2 0.000 0.000 -1.747

Atom - Atom Distances (Å)
  I1 F2
I12.0439
F22.0439

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