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: MP3=FULL/6-31G**

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 MP3=FULL/6-31G**
 hartrees
Energy at 0K-498.752274
Energy at 298.15K 
HF Energy-498.464569
Nuclear repulsion energy45.385374
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 MP3=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3297 3297 8.48      
2 A' 1504 1504 18.07      
3 A' 878 878 34.60      
4 A' 293 293 68.24      
5 A" 3447 3447 0.52      
6 A" 1051 1051 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 5235.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5235.1 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 MP3=FULL/6-31G**
ABC
9.29284 0.52699 0.49938

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 1.119 0.000
Cl2 -0.010 -0.585 0.000
H3 0.111 1.616 0.943
H4 0.111 1.616 -0.943

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70371.07281.0728
Cl21.70372.39782.3978
H31.07282.39781.8854
H41.07282.39781.8854

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 117.640 Br2 C1 H4 117.640
H3 C1 H4 122.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3=FULL/6-31G**
 hartrees
Energy at 0K-498.752239
Energy at 298.15K 
HF Energy-498.464428
Nuclear repulsion energy45.413375
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 MP3=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3305 3305 7.21      
2 A1 1504 1504 18.62      
3 A1 881 881 33.37      
4 B1 210i 210i 78.44      
5 B2 3457 3457 0.22      
6 B2 1046 1046 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 4991.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4991.2 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 MP3=FULL/6-31G**
ABC
9.35803 0.52769 0.49952

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.117
Cl2 0.000 0.000 0.585
H3 0.000 0.945 -1.622
H4 0.000 -0.945 -1.622

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70181.07201.0720
Cl21.70182.40122.4012
H31.07202.40121.8907
H41.07202.40121.8907

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 118.136 Br2 C1 H4 118.136
H3 C1 H4 123.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability