return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2Cl (chloromethyl radical)

using model chemistry: MP4/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-498.885862
Energy at 298.15K 
HF Energy-498.507902
Nuclear repulsion energy45.682517
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 MP4/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at MP4/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP4/6-311+G(3df,2p)
 hartrees
Energy at 0K-498.886018
Energy at 298.15K 
HF Energy-498.508069
Nuclear repulsion energy45.525967
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 MP4/6-311+G(3df,2p)
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 3196 3017        
2 A1 1439 1358        
3 A1 865 816        
4 B1 72 68        
5 B2 3346 3158        
6 B2 1010 954        

Unscaled Zero Point Vibrational Energy (zpe) 4963.9 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 4684.9 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 MP4/6-311+G(3df,2p)
ABC
9.25270 0.53166 0.50277

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.112
Cl2 0.000 0.000 0.583
H3 0.000 0.951 -1.617
H4 0.000 -0.951 -1.617

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.69521.07651.0765
Cl21.69522.39672.3967
H31.07652.39671.9015
H41.07652.39671.9015

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 117.973 Br2 C1 H4 117.973
H3 C1 H4 124.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability