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

using model chemistry: MP4/3-21G

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 MP4/3-21G
 hartrees
Energy at 0K-952.945027
Energy at 298.15K 
HF Energy-952.751560
Nuclear repulsion energy118.896031
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 MP4/3-21G
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 3294 3195        
2 A1 636 617        
3 A1 266 258        
4 B1 531i 515i        
5 B2 1184 1148        
6 B2 799 775        

Unscaled Zero Point Vibrational Energy (zpe) 2824.1 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 2738.8 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 MP4/3-21G
ABC
1.39255 0.09948 0.09285

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.736
H2 0.000 0.000 1.815
Cl3 0.000 1.557 -0.183
Cl4 0.000 -1.557 -0.183

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07931.80761.8076
H21.07932.53292.5329
Cl31.80762.53293.1132
Cl41.80762.53293.1132

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 120.553 Cl3 C1 Cl4 118.893
Cl4 C1 H2 120.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-952.948014
Energy at 298.15K-952.948729
HF Energy-952.753036
Nuclear repulsion energy118.130721
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 MP4/3-21G
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' 3225 3128        
2 A' 710 689        
3 A' 552 535        
4 A' 262 254        
5 A" 1207 1170        
6 A" 741 718        

Unscaled Zero Point Vibrational Energy (zpe) 3348.2 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 3247.1 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 MP4/3-21G
ABC
1.30864 0.09924 0.09258

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.016 0.782 0.000
H2 -0.635 1.650 0.000
Cl3 0.016 -0.186 1.557
Cl4 0.016 -0.186 -1.557

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08521.83341.8334
H21.08522.49422.4942
Cl31.83342.49423.1139
Cl41.83342.49423.1139

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 115.001 Cl3 C1 Cl4 116.252
Cl4 C1 H2 115.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability