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: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-309.759779
Energy at 298.15K 
HF Energy-309.320191
Nuclear repulsion energy91.817846
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 MP2/SDD
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 560 541 12.69 15.62 0.16 0.28
2 A1 499 481 0.22 50.29 0.39 0.56
3 A1 171 165 27.51 0.37 0.31 0.48
4 B1 183 176 32.06 0.06 0.75 0.86
5 B2 552 533 137.45 0.66 0.75 0.86
6 B2 261 252 6.83 5.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1112.7 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1074.1 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 MP2/SDD
ABC
0.25669 0.10723 0.07564

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.281
F2 0.000 0.000 -1.712
F3 0.000 2.034 0.027
F4 0.000 -2.034 0.027

Atom - Atom Distances (Å)
  I1 F2 F3 F4
I11.99362.04982.0498
F21.99362.67642.6764
F32.04982.67644.0681
F42.04982.67644.0681

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 82.880 F2 I1 F4 82.880
F3 I1 F4 165.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability