return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-957.921304
Energy at 298.15K 
HF Energy-957.412423
Nuclear repulsion energy126.102102
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/6-311G*
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 3325 3149 0.01      
2 A1 785 744 9.22      
3 A1 329 312 0.18      
4 B1 440i 416i 63.16      
5 B2 1308 1238 51.67      
6 B2 971 920 160.90      

Unscaled Zero Point Vibrational Energy (zpe) 3138.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 2972.8 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/6-311G*
ABC
1.62528 0.11125 0.10412

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.668
H2 0.000 0.000 1.744
Cl3 0.000 1.472 -0.169
Cl4 0.000 -1.472 -0.169

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07611.69341.6934
H21.07612.41402.4140
Cl31.69342.41402.9439
Cl41.69342.41402.9439

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 119.631 Cl3 C1 Cl4 120.738
Cl4 C1 H2 119.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-957.922522
Energy at 298.15K-957.923413
HF Energy-957.414262
Nuclear repulsion energy125.892342
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/6-311G*
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' 3277 3104 2.69      
2 A' 793 751 16.21      
3 A' 555 526 27.57      
4 A' 323 306 0.36      
5 A" 1317 1247 44.30      
6 A" 936 886 188.21      

Unscaled Zero Point Vibrational Energy (zpe) 3600.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 3410.1 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/6-311G*
ABC
1.56963 0.11161 0.10445

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.013 0.693 0.000
H2 -0.503 1.642 0.000
Cl3 0.013 -0.171 1.469
Cl4 0.013 -0.171 -1.469

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08011.70391.7039
H21.08012.38952.3895
Cl31.70392.38952.9373
Cl41.70392.38952.9373

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 116.455 Cl3 C1 Cl4 119.071
Cl4 C1 H2 116.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability