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

using model chemistry: MP2/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-35.479390
Energy at 298.15K 
HF Energy-35.325607
Nuclear repulsion energy29.793134
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/CEP-121G
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 3248 3170 0.64      
2 A1 700 683 13.66      
3 A1 292 285 0.64      
4 B1 551i 538i 93.64      
5 B2 1246 1216 62.83      
6 B2 895 873 140.54      

Unscaled Zero Point Vibrational Energy (zpe) 2915.4 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 2845.4 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 MP2/CEP-121G
ABC
1.47178 0.09974 0.09341

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.710
H2 0.000 0.000 1.795
Cl3 0.000 1.555 -0.178
Cl4 0.000 -1.555 -0.178

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08501.79021.7902
H21.08502.51172.5117
Cl31.79022.51173.1092
Cl41.79022.51173.1092

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 119.730 Cl3 C1 Cl4 120.541
Cl4 C1 H2 119.730
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-35.482172
Energy at 298.15K-35.483006
HF Energy-35.327306
Nuclear repulsion energy29.666452
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/CEP-121G
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' 3183 3107 5.85      
2 A' 737 719 24.30      
3 A' 604 589 11.34      
4 A' 283 276 0.68      
5 A" 1264 1233 51.91      
6 A" 836 816 173.78      

Unscaled Zero Point Vibrational Energy (zpe) 3453.0 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 3370.1 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/CEP-121G
ABC
1.39610 0.09989 0.09352

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.015 0.749 0.000
H2 -0.603 1.648 0.000
Cl3 0.015 -0.181 1.552
Cl4 0.015 -0.181 -1.552

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.09121.80891.8089
H21.09122.47682.4768
Cl31.80892.47683.1041
Cl41.80892.47683.1041

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 115.048 Cl3 C1 Cl4 118.185
Cl4 C1 H2 115.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability