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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: CISD/cc-pVTZ-PP

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/cc-pVTZ-PP
 hartrees
Energy at 0K-827.015448
Energy at 298.15K 
HF Energy-826.124112
Nuclear repulsion energy397.325030
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/cc-pVTZ-PP
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 1182 1182 291.79      
2 A1 647 647 5.09      
3 A1 302 302 0.05      
4 A1 122 122 0.10      
5 A2 270 270 0.00      
6 B1 834 834 321.76      
7 B1 302 302 1.06      
8 B2 1248 1248 147.87      
9 B2 332 332 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 2619.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2619.9 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/cc-pVTZ-PP
ABC
0.09447 0.01975 0.01782

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.845
F2 0.000 1.064 1.627
F3 0.000 -1.064 1.627
I4 1.787 0.000 -0.324
I5 -1.787 0.000 -0.324

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.32011.32012.13562.1356
F21.32012.12752.85162.8516
F31.32012.12752.85162.8516
I42.13562.85162.85163.5742
I52.13562.85162.85163.5742

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 107.377 F2 C1 I4 108.917
F2 C1 I5 108.917 F3 C1 I4 108.917
F3 C1 I5 108.917 I4 C1 I5 113.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability