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All results from a given calculation for CHCl2 (dichloromethyl radical)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 2B1
1 2 yes CS 2A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-953.341985
Energy at 298.15K 
HF Energy-952.979568
Nuclear repulsion energy125.086314
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/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 3332 3159 0.39      
2 A1 743 704 12.54      
3 A1 319 302 0.57      
4 B1 390i 370i 67.70      
5 B2 1320 1252 45.79      
6 B2 908 861 148.02      

Unscaled Zero Point Vibrational Energy (zpe) 3116.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 2954.1 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/3-21G*
ABC
1.58135 0.10970 0.10258

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
H2 0.000 0.000 1.755
Cl3 0.000 1.482 -0.172
Cl4 0.000 -1.482 -0.172

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07561.70951.7095
H21.07562.43132.4313
Cl31.70952.43132.9647
Cl41.70952.43132.9647

picture of dichloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl3 C1 H2 119.874 Cl3 C1 Cl4 120.252
Cl4 C1 H2 119.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-953.342830
Energy at 298.15K-953.343636
HF Energy-952.979989
Nuclear repulsion energy124.780891
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/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' 3292 3121 1.20      
2 A' 756 717 21.61      
3 A' 496 470 27.50      
4 A' 314 298 0.66      
5 A" 1326 1257 38.20      
6 A" 871 825 168.19      

Unscaled Zero Point Vibrational Energy (zpe) 3527.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 3343.8 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=FULL/3-21G*
ABC
1.52663 0.10986 0.10269

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.704 0.000
H2 -0.466 1.672 0.000
Cl3 0.012 -0.173 1.480
Cl4 0.012 -0.173 -1.480

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07901.72081.7208
H21.07902.41322.4132
Cl31.72082.41322.9609
Cl41.72082.41322.9609

picture of dichloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl3 C1 H2 117.207 Cl3 C1 Cl4 118.702
Cl4 C1 H2 117.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability