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

using model chemistry: MP2/3-21G

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 MP2/3-21G
 hartrees
Energy at 0K-952.918650
Energy at 298.15K 
HF Energy-952.751905
Nuclear repulsion energy119.554743
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 A1 3353 3200 1.94      
2 A1 653 623 15.18      
3 A1 274 261 0.84      
4 B1 547i 522i 87.31      
5 B2 1214 1159 74.12      
6 B2 821 784 130.87      

Unscaled Zero Point Vibrational Energy (zpe) 2883.8 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 2752.6 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
1.41302 0.10052 0.09385

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.000 0.000 1.805
Cl3 0.000 1.549 -0.182
Cl4 0.000 -1.549 -0.182

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07481.79691.7969
H21.07482.51862.5186
Cl31.79692.51863.0970
Cl41.79692.51863.0970

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 120.486 Cl3 C1 Cl4 119.028
Cl4 C1 H2 120.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-952.921598
Energy at 298.15K-952.922353
HF Energy-952.753554
Nuclear repulsion energy118.825297
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' 3287 3137 1.60      
2 A' 724 691 29.55      
3 A' 569 543 11.46      
4 A' 270 258 0.59      
5 A" 1238 1182 48.96      
6 A" 764 729 163.52      

Unscaled Zero Point Vibrational Energy (zpe) 3425.9 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 3270.0 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
1.33271 0.10027 0.09357

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 0.016 0.773 0.000
H2 -0.621 1.646 0.000
Cl3 0.016 -0.185 1.549
Cl4 0.016 -0.185 -1.549

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08061.82131.8213
H21.08062.48142.4814
Cl31.82132.48143.0980
Cl41.82132.48143.0980

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 115.148 Cl3 C1 Cl4 116.531
Cl4 C1 H2 115.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability