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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-259.361178
Energy at 298.15K 
HF Energy-258.977041
Nuclear repulsion energy130.436617
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/LANL2DZ
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 935 901 252.01 4.72 0.75 0.86
2 A1 510 491 6.15 3.65 0.28 0.44
3 A1 255 246 0.11 10.23 0.18 0.30
4 A1 116 112 0.25 7.99 0.60 0.75
5 A2 237 228 0.00 2.81 0.75 0.86
6 B1 720 693 276.67 2.93 0.75 0.86
7 B1 265 255 1.60 4.81 0.75 0.86
8 B2 950 915 177.03 0.52 0.75 0.86
9 B2 294 283 0.21 6.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2141.0 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 2062.0 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/LANL2DZ
ABC
0.08630 0.01814 0.01644

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.823
F2 0.000 1.142 1.698
F3 0.000 -1.142 1.698
I4 1.862 0.000 -0.335
I5 -1.862 0.000 -0.335

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.43821.43822.19282.1928
F21.43822.28332.98382.9838
F31.43822.28332.98382.9838
I42.19282.98382.98383.7236
I52.19282.98382.98383.7236

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 105.082 F2 C1 I4 108.742
F2 C1 I5 108.742 F3 C1 I4 108.742
F3 C1 I5 108.742 I4 C1 I5 116.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability