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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-14648.026587
Energy at 298.15K 
HF Energy-14647.912896
Nuclear repulsion energy1244.194625
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=FULL/STO-3G
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 823 731 104.26 8.78 0.44 0.61
2 A1 360 320 1.38 9.96 0.02 0.05
3 A1 217 193 0.74 5.75 0.38 0.55
4 A1 123 110 0.01 3.67 0.69 0.82
5 A2 164 146 0.00 3.42 0.75 0.86
6 B1 752 669 110.76 4.09 0.75 0.86
7 B1 206 183 1.90 4.42 0.75 0.86
8 B2 856 761 98.70 9.06 0.75 0.86
9 B2 243 216 1.05 4.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1871.9 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 1664.0 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=FULL/STO-3G
ABC
0.03670 0.01677 0.01465

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.612
Cl2 0.000 1.498 1.735
Cl3 0.000 -1.498 1.735
I4 1.828 0.000 -0.591
I5 -1.828 0.000 -0.591

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.87231.87232.18832.1883
Cl21.87232.99553.31613.3161
Cl31.87232.99553.31613.3161
I42.18833.31613.31613.6561
I52.18833.31613.31613.6561

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 106.255 Cl2 C1 I4 109.258
Cl2 C1 I5 109.258 Cl3 C1 I4 109.258
Cl3 C1 I5 109.258 I4 C1 I5 113.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability