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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-14733.090657
Energy at 298.15K 
HF Energy-14732.990695
Nuclear repulsion energy1232.030950
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 B2PLYP=FULL/3-21G
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 641 610 117.54 13.06 0.49 0.66
2 A1 312 297 0.37 20.24 0.03 0.06
3 A1 195 186 0.34 11.47 0.32 0.49
4 A1 110 105 0.09 6.18 0.67 0.81
5 A2 148 141 0.00 5.55 0.75 0.86
6 B1 644 613 97.40 8.41 0.75 0.86
7 B1 185 177 0.76 7.94 0.75 0.86
8 B2 621 591 115.05 10.94 0.75 0.86
9 B2 221 210 0.22 8.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1538.6 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 1464.8 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 B2PLYP=FULL/3-21G
ABC
0.03585 0.01647 0.01439

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.608
Cl2 0.000 1.518 1.755
Cl3 0.000 -1.518 1.755
I4 1.843 0.000 -0.597
I5 -1.843 0.000 -0.597

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.90291.90292.20242.2024
Cl21.90293.03603.35233.3523
Cl31.90293.03603.35233.3523
I42.20243.35233.35233.6867
I52.20243.35233.35233.6867

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 105.831 Cl2 C1 I4 109.269
Cl2 C1 I5 109.269 Cl3 C1 I4 109.269
Cl3 C1 I5 109.269 I4 C1 I5 113.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability