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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-947.134759
Energy at 298.15K 
HF Energy-947.078096
Nuclear repulsion energy120.555760
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/STO-3G
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 3542 3088 5.29      
2 A1 797 695 22.08      
3 A1 299 260 3.83      
4 B1 632i 551i 27.12      
5 B2 1330 1160 112.18      
6 B2 1053 918 54.68      

Unscaled Zero Point Vibrational Energy (zpe) 3194.4 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 2785.2 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 MP2/STO-3G
ABC
1.49201 0.10151 0.09505

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.701
H2 0.000 0.000 1.802
Cl3 0.000 1.541 -0.177
Cl4 0.000 -1.541 -0.177

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.10091.77341.7734
H21.10092.50782.5078
Cl31.77342.50783.0819
Cl41.77342.50783.0819

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 119.666 Cl3 C1 Cl4 120.667
Cl4 C1 H2 119.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-947.139312
Energy at 298.15K-947.140160
HF Energy-947.080874
Nuclear repulsion energy120.577580
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/STO-3G
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' 3479 3034 1.89      
2 A' 826 720 25.30      
3 A' 721 628 2.21      
4 A' 295 258 3.08      
5 A" 1337 1165 71.60      
6 A" 1016 885 90.09      

Unscaled Zero Point Vibrational Energy (zpe) 3836.4 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 3344.9 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 MP2/STO-3G
ABC
1.39098 0.10309 0.09636

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.017 0.751 0.000
H2 -0.670 1.622 0.000
Cl3 0.017 -0.180 1.527
Cl4 0.017 -0.180 -1.527

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.10901.78911.7891
H21.10902.46032.4603
Cl31.78912.46033.0549
Cl41.78912.46033.0549

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 114.137 Cl3 C1 Cl4 117.249
Cl4 C1 H2 114.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability