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All results from a given calculation for CH2Cl (chloromethyl 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 yes CS 2A'
1 2 no C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-496.369254
Energy at 298.15K 
HF Energy-496.164142
Nuclear repulsion energy44.972637
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' 3239 3081 5.48      
2 A' 1511 1438 14.37      
3 A' 816 777 39.31      
4 A' 242 230 87.84      
5 A" 3391 3226 0.22      
6 A" 1059 1007 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 5128.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 4878.6 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 MP2/3-21G*
ABC
9.19937 0.51675 0.48973

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 -0.008 1.131 0.000
Cl2 -0.008 -0.591 0.000
H3 0.093 1.630 0.949
H4 0.093 1.630 -0.949

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.72131.07741.0774
Cl21.72132.41732.4173
H31.07742.41731.8986
H41.07742.41731.8986

picture of chloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.617 Br2 C1 H4 117.617
H3 C1 H4 123.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-496.369237
Energy at 298.15K 
HF Energy-496.164139
Nuclear repulsion energy44.990269
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 3243 3085 4.78      
2 A1 1510 1436 14.86      
3 A1 817 778 38.20      
4 B1 175i 166i 97.61      
5 B2 3398 3232 0.09      
6 B2 1055 1004 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 4924.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 4684.4 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
9.23893 0.51721 0.48979

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 -1.129
Cl2 0.000 0.000 0.591
H3 0.000 0.951 -1.634
H4 0.000 -0.951 -1.634

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.72011.07691.0769
Cl21.72012.41952.4195
H31.07692.41951.9029
H41.07692.41951.9029

picture of chloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.933 Br2 C1 H4 117.933
H3 C1 H4 124.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability