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

using model chemistry: QCISD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-957.899699
Energy at 298.15K 
HF Energy-957.371530
Nuclear repulsion energy125.765990
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(2df,p)
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 3318 3143 0.99      
2 A1 766 726 8.26      
3 A1 312 295 0.56      
4 B1 405i 384i 37.20      
5 B2 1257 1191 56.21      
6 B2 954 904 118.62      

Unscaled Zero Point Vibrational Energy (zpe) 3100.6 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 2937.5 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(2df,p)
ABC
1.60011 0.11089 0.10370

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.675
H2 0.000 0.000 1.751
Cl3 0.000 1.474 -0.171
Cl4 0.000 -1.474 -0.171

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07641.69941.6994
H21.07642.42202.4220
Cl31.69942.42202.9487
Cl41.69942.42202.9487

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 119.826 Cl3 C1 Cl4 120.349
Cl4 C1 H2 119.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-957.900711
Energy at 298.15K-957.901547
HF Energy-957.373151
Nuclear repulsion energy125.610167
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(2df,p)
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' 3278 3106 1.38      
2 A' 775 734 13.42      
3 A' 521 493 19.02      
4 A' 306 290 0.50      
5 A" 1262 1196 45.91      
6 A" 925 876 142.43      

Unscaled Zero Point Vibrational Energy (zpe) 3533.2 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 3347.4 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 QCISD/6-31G(2df,p)
ABC
1.54275 0.11141 0.10415

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.700 0.000
H2 -0.493 1.655 0.000
Cl3 0.012 -0.172 1.470
Cl4 0.012 -0.172 -1.470

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08001.70941.7094
H21.08002.39872.3987
Cl31.70942.39872.9399
Cl41.70942.39872.9399

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 116.810 Cl3 C1 Cl4 118.614
Cl4 C1 H2 116.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability