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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-957.760953
Energy at 298.15K 
HF Energy-957.356415
Nuclear repulsion energy125.381120
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 QCISD/6-31G*
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 3309 3151 0.00      
2 A1 774 737 9.88      
3 A1 319 304 0.59      
4 B1 395i 376i 54.73      
5 B2 1300 1238 58.27      
6 B2 965 919 122.85      

Unscaled Zero Point Vibrational Energy (zpe) 3135.9 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 2986.3 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 QCISD/6-31G*
ABC
1.60761 0.10996 0.10292

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.672
H2 0.000 0.000 1.752
Cl3 0.000 1.481 -0.170
Cl4 0.000 -1.481 -0.170

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08051.70331.7033
H21.08052.42662.4266
Cl31.70332.42662.9611
Cl41.70332.42662.9611

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 119.630 Cl3 C1 Cl4 120.739
Cl4 C1 H2 119.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-957.761845
Energy at 298.15K-957.762685
HF Energy-957.357872
Nuclear repulsion energy125.273110
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 QCISD/6-31G*
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' 3272 3116 2.30      
2 A' 781 744 15.29      
3 A' 518 493 25.87      
4 A' 313 298 0.73      
5 A" 1306 1244 49.08      
6 A" 937 892 145.86      

Unscaled Zero Point Vibrational Energy (zpe) 3563.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 3393.5 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 QCISD/6-31G*
ABC
1.55499 0.11050 0.10339

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.696 0.000
H2 -0.477 1.662 0.000
Cl3 0.012 -0.172 1.476
Cl4 0.012 -0.172 -1.476

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08351.71201.7120
H21.08352.40452.4045
Cl31.71202.40452.9522
Cl41.71202.40452.9522

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 116.867 Cl3 C1 Cl4 119.134
Cl4 C1 H2 116.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability