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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-957.768938
Energy at 298.15K 
HF Energy-957.358370
Nuclear repulsion energy125.458954
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
4/u)
Dep P Dep U
1 A1 3347 3151 0.04      
2 A1 775 729 9.66      
3 A1 319 301 0.58      
4 B1 398i 375i 50.63      
5 B2 1306 1229 63.62      
6 B2 966 909 122.52      

Unscaled Zero Point Vibrational Energy (zpe) 3157.5 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 2972.5 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
1.61341 0.11003 0.10301

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 0.671
H2 0.000 0.000 1.746
Cl3 0.000 1.480 -0.170
Cl4 0.000 -1.480 -0.170

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07451.70251.7025
H21.07452.42092.4209
Cl31.70252.42092.9602
Cl41.70252.42092.9602

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 119.614 Cl3 C1 Cl4 120.772
Cl4 C1 H2 119.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-957.769843
Energy at 298.15K-957.770691
HF Energy-957.359749
Nuclear repulsion energy125.345844
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
4/u)
Dep P Dep U
1 A' 3308 3115 2.69      
2 A' 782 736 14.80      
3 A' 520 489 23.48      
4 A' 313 295 0.68      
5 A" 1310 1233 53.60      
6 A" 938 883 145.57      

Unscaled Zero Point Vibrational Energy (zpe) 3585.6 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 3375.5 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
1.56114 0.11054 0.10345

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 0.695 0.000
H2 -0.476 1.656 0.000
Cl3 0.012 -0.171 1.476
Cl4 0.012 -0.171 -1.476

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07781.71121.7112
H21.07782.39882.3988
Cl31.71122.39882.9516
Cl41.71122.39882.9516

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 116.822 Cl3 C1 Cl4 119.186
Cl4 C1 H2 116.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability