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

using model chemistry: QCISD(T)/CEP-121G

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 QCISD(T)/CEP-121G
 hartrees
Energy at 0K-35.164137
Energy at 298.15K-35.162273
HF Energy-35.004503
Nuclear repulsion energy12.743539
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(T)/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 525 500        

Unscaled Zero Point Vibrational Energy (zpe) 262.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 250.2 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(T)/CEP-121G
B
0.24655

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.295
F2 0.000 0.000 -1.739

Atom - Atom Distances (Å)
  I1 F2
I12.0341
F22.0341

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