return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for IF3 (iodone trifluoride)

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-596.036459
Energy at 298.15K 
HF Energy-594.981739
Nuclear repulsion energy236.710403
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 CISD/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 747 747 64.97      
2 A1 619 619 0.12      
3 A1 231 231 20.14      
4 B1 220 220 18.91      
5 B2 632 632 327.19      
6 B2 350 350 8.52      

Unscaled Zero Point Vibrational Energy (zpe) 1398.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1398.7 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 CISD/Def2TZVPP
ABC
0.30723 0.12462 0.08866

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.259
F2 0.000 0.000 -1.563
F3 0.000 1.887 0.020
F4 0.000 -1.887 0.020

Atom - Atom Distances (Å)
  I1 F2 F3 F4
I11.82221.90191.9019
F21.82222.46302.4630
F31.90192.46303.7736
F41.90192.46303.7736

picture of iodone trifluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 I1 F3 82.777 F2 I1 F4 82.777
F3 I1 F4 165.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability