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All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-7384.454252
Energy at 298.15K 
HF Energy-7384.113128
Nuclear repulsion energy284.046668
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3174 3020 0.87 74.98 0.10 0.18
2 A' 1533 1459 0.04 16.65 0.74 0.85
3 A' 1285 1222 66.61 3.87 0.35 0.52
4 A' 710 675 81.38 5.94 0.72 0.84
5 A' 552 525 15.08 18.43 0.18 0.31
6 A' 198 188 0.20 6.56 0.46 0.63
7 A" 3257 3099 1.21 51.98 0.75 0.86
8 A" 1195 1137 0.01 10.32 0.75 0.86
9 A" 833 792 5.80 2.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6367.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 6057.8 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 MP2/3-21G*
ABC
0.88622 0.05176 0.04937

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.817 -1.108 0.000
Cl2 -0.455 -2.371 0.000
I3 0.000 0.931 0.000
H4 1.416 -1.208 0.902
H5 1.416 -1.208 -0.902

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.79322.19681.08661.0866
Cl21.79323.33372.38022.3802
I32.19683.33372.71902.7190
H41.08662.38022.71901.8033
H51.08662.38022.71901.8033

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 112.950 Cl2 C1 H4 109.006
Cl2 C1 H5 109.006 I3 C1 H4 106.878
I3 C1 H5 106.878 H4 C1 H5 112.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability