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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-14733.574256
Energy at 298.15K 
HF Energy-14733.354581
Nuclear repulsion energy1256.865381
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 674 674 105.77 13.37 0.52 0.68
2 A1 344 344 0.15 14.83 0.02 0.05
3 A1 206 206 0.04 9.75 0.21 0.35
4 A1 108 108 0.06 3.63 0.61 0.75
5 A2 154 154 0.00 2.99 0.75 0.86
6 B1 642 642 88.54 15.77 0.75 0.86
7 B1 191 191 0.11 5.54 0.75 0.86
8 B2 672 672 95.61 3.91 0.75 0.86
9 B2 224 224 0.32 4.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1607.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1607.6 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
0.03746 0.01719 0.01493

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 0.675
Cl2 0.000 1.468 1.720
Cl3 0.000 -1.468 1.720
I4 1.808 0.000 -0.590
I5 -1.808 0.000 -0.590

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.80241.80242.20662.2066
Cl21.80242.93693.28033.2803
Cl31.80242.93693.28033.2803
I42.20663.28033.28033.6169
I52.20663.28033.28033.6169

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.124 Cl2 C1 I4 109.404
Cl2 C1 I5 109.404 Cl3 C1 I4 109.404
Cl3 C1 I5 109.404 I4 C1 I5 110.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability