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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-953.316769
Energy at 298.15K 
HF Energy-952.979565
Nuclear repulsion energy125.058072
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 3331 3169 0.38      
2 A1 743 707 12.60      
3 A1 319 304 0.57      
4 B1 393i 374i 67.54      
5 B2 1322 1257 45.88      
6 B2 909 864 148.17      

Unscaled Zero Point Vibrational Energy (zpe) 3115.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 2963.8 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 MP2/3-21G*
ABC
1.58252 0.10962 0.10252

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 0.680
H2 0.000 0.000 1.755
Cl3 0.000 1.483 -0.172
Cl4 0.000 -1.483 -0.172

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07581.70971.7097
H21.07582.43142.4314
Cl31.70972.43142.9657
Cl41.70972.43142.9657

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 119.853 Cl3 C1 Cl4 120.294
Cl4 C1 H2 119.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-953.317634
Energy at 298.15K-953.318443
HF Energy-952.979981
Nuclear repulsion energy124.753562
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' 3291 3131 1.23      
2 A' 756 720 21.75      
3 A' 499 475 27.11      
4 A' 314 299 0.66      
5 A" 1327 1262 38.19      
6 A" 871 829 168.57      

Unscaled Zero Point Vibrational Energy (zpe) 3529.3 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 3357.4 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
1.52723 0.10979 0.10263

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 0.012 0.704 0.000
H2 -0.468 1.671 0.000
Cl3 0.012 -0.173 1.481
Cl4 0.012 -0.173 -1.481

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07911.72121.7212
H21.07912.41312.4131
Cl31.72122.41312.9618
Cl41.72122.41312.9618

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 117.164 Cl3 C1 Cl4 118.726
Cl4 C1 H2 117.164
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability