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All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-7384.442598
Energy at 298.15K 
HF Energy-7384.113389
Nuclear repulsion energy284.840205
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 CISD/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' 3208 2997 1.51      
2 A' 1549 1447 0.09      
3 A' 1306 1221 66.41      
4 A' 724 676 78.05      
5 A' 566 529 9.98      
6 A' 201 188 0.31      
7 A" 3286 3070 0.94      
8 A" 1213 1133 0.00      
9 A" 840 785 5.85      

Unscaled Zero Point Vibrational Energy (zpe) 6446.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 6023.4 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 CISD/3-21G*
ABC
0.89160 0.05203 0.04963

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.815 -1.101 0.000
Cl2 -0.454 -2.366 0.000
I3 0.000 0.929 0.000
H4 1.413 -1.206 0.897
H5 1.413 -1.206 -0.897

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.79182.18691.08341.0834
Cl21.79183.32582.37382.3738
I32.18693.32582.71332.7133
H41.08342.37382.71331.7937
H51.08342.37382.71331.7937

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 113.043 Cl2 C1 H4 108.790
Cl2 C1 H5 108.790 I3 C1 H4 107.255
I3 C1 H5 107.255 H4 C1 H5 111.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability