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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-952.944651
Energy at 298.15K 
HF Energy-952.751404
Nuclear repulsion energy118.622226
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/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 3288 3186 1.37      
2 A1 620 601 11.99      
3 A1 261 253 0.87      
4 B1 485i 470i 80.85      
5 B2 1170 1134 69.86      
6 B2 779 755 99.82      

Unscaled Zero Point Vibrational Energy (zpe) 2815.9 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 2729.2 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 QCISD/3-21G
ABC
1.38560 0.09903 0.09242

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.738
H2 0.000 0.000 1.817
Cl3 0.000 1.560 -0.184
Cl4 0.000 -1.560 -0.184

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07911.81201.8120
H21.07912.53712.5371
Cl31.81202.53713.1202
Cl41.81202.53713.1202

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 120.573 Cl3 C1 Cl4 118.854
Cl4 C1 H2 120.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-952.946946
Energy at 298.15K-952.947629
HF Energy-952.753077
Nuclear repulsion energy118.096984
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/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' 3229 3130 1.31      
2 A' 677 656 26.69      
3 A' 536 519 10.83      
4 A' 260 252 0.65      
5 A" 1196 1159 44.51      
6 A" 736 713 130.27      

Unscaled Zero Point Vibrational Energy (zpe) 3316.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 3214.6 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/3-21G
ABC
1.31069 0.09914 0.09247

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.015 0.780 0.000
H2 -0.611 1.665 0.000
Cl3 0.015 -0.187 1.558
Cl4 0.015 -0.187 -1.558

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08421.83321.8332
H21.08422.49932.4993
Cl31.83322.49933.1158
Cl41.83322.49933.1158

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 115.481 Cl3 C1 Cl4 116.390
Cl4 C1 H2 115.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability