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: MP3=FULL/6-31G**

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 MP3=FULL/6-31G**
 hartrees
Energy at 0K-957.786056
Energy at 298.15K 
HF Energy-957.358365
Nuclear repulsion energy125.848673
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 MP3=FULL/6-31G**
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 3391 3391 0.00      
2 A1 785 785 10.89      
3 A1 323 323 0.58      
4 B1 414i 414i 51.20      
5 B2 1321 1321 65.25      
6 B2 979 979 127.06      

Unscaled Zero Point Vibrational Energy (zpe) 3192.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3192.5 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 MP3=FULL/6-31G**
ABC
1.62329 0.11072 0.10365

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.669
H2 0.000 0.000 1.741
Cl3 0.000 1.475 -0.169
Cl4 0.000 -1.475 -0.169

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07111.69721.6972
H21.07112.41342.4134
Cl31.69722.41342.9510
Cl41.69722.41342.9510

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 119.616 Cl3 C1 Cl4 120.768
Cl4 C1 H2 119.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP3=FULL/6-31G**
 hartrees
Energy at 0K-957.787020
Energy at 298.15K-957.787890
HF Energy-957.359758
Nuclear repulsion energy125.693456
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 MP3=FULL/6-31G**
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' 3348 3348 2.28      
2 A' 792 792 16.55      
3 A' 534 534 22.57      
4 A' 318 318 0.63      
5 A" 1324 1324 55.69      
6 A" 948 948 148.95      

Unscaled Zero Point Vibrational Energy (zpe) 3631.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3631.2 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 MP3=FULL/6-31G**
ABC
1.56945 0.11116 0.10403

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.693 0.000
H2 -0.476 1.651 0.000
Cl3 0.012 -0.171 1.472
Cl4 0.012 -0.171 -1.472

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07461.70651.7065
H21.07462.39202.3920
Cl31.70652.39202.9434
Cl41.70652.39202.9434

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 116.812 Cl3 C1 Cl4 119.173
Cl4 C1 H2 116.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability