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: B2PLYP=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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-958.763152
Energy at 298.15K 
HF Energy-958.598390
Nuclear repulsion energy125.405982
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 B2PLYP=FULL/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3292 3292 0.15      
2 A1 757 757 8.56      
3 A1 319 319 0.17      
4 B1 392i 392i 62.27      
5 B2 1279 1279 50.30      
6 B2 925 925 170.85      

Unscaled Zero Point Vibrational Energy (zpe) 3089.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3089.9 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 B2PLYP=FULL/6-311G*
ABC
1.61403 0.10991 0.10290

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.671
H2 0.000 0.000 1.747
Cl3 0.000 1.481 -0.170
Cl4 0.000 -1.481 -0.170

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07561.70301.7030
H21.07562.42202.4220
Cl31.70302.42202.9618
Cl41.70302.42202.9618

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 119.589 Cl3 C1 Cl4 120.822
Cl4 C1 H2 119.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-958.764120
Energy at 298.15K-958.764945
HF Energy-958.599459
Nuclear repulsion energy125.198583
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 B2PLYP=FULL/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3254 3254 2.96      
2 A' 766 766 15.30      
3 A' 511 511 30.18      
4 A' 312 312 0.47      
5 A" 1288 1288 42.26      
6 A" 890 890 199.85      

Unscaled Zero Point Vibrational Energy (zpe) 3510.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3510.9 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 B2PLYP=FULL/6-311G*
ABC
1.55930 0.11025 0.10321

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.696 0.000
H2 -0.495 1.648 0.000
Cl3 0.012 -0.171 1.478
Cl4 0.012 -0.171 -1.478

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07881.71341.7134
H21.07882.39812.3981
Cl31.71342.39812.9554
Cl41.71342.39812.9554

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 116.532 Cl3 C1 Cl4 119.183
Cl4 C1 H2 116.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability