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/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP3/cc-pVTZ
 hartrees
Energy at 0K-498.880874
Energy at 298.15K 
HF Energy-498.515298
Nuclear repulsion energy45.444574
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/cc-pVTZ
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' 3238 3059 6.15      
2 A' 1454 1374 12.34      
3 A' 862 814 33.44      
4 A' 74 69 68.50      
5 A" 3390 3203 0.20      
6 A" 1015 959 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 5016.7 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 4739.3 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/cc-pVTZ
ABC
9.30852 0.52885 0.50042

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 1.116 0.000
Cl2 -0.001 -0.584 0.000
H3 0.006 1.618 0.948
H4 0.006 1.618 -0.948

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70051.07261.0726
Cl21.70052.39772.3977
H31.07262.39771.8957
H41.07262.39771.8957

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 117.901 Br2 C1 H4 117.901
H3 C1 H4 124.194
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3/cc-pVTZ
 hartrees
Energy at 0K-498.880874
Energy at 298.15K 
HF Energy-498.515295
Nuclear repulsion energy45.446698
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/cc-pVTZ
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 3238 3059 6.16      
2 A1 1455 1374 12.34      
3 A1 862 815 33.42      
4 B1 77 73 68.54      
5 B2 3390 3202 0.20      
6 B2 1015 959 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 5018.4 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 4740.9 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 MP3/cc-pVTZ
ABC
9.31004 0.52890 0.50047

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.116
Cl2 0.000 0.000 0.584
H3 0.000 0.948 -1.618
H4 0.000 -0.948 -1.618

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70041.07261.0726
Cl21.70042.39782.3978
H31.07262.39781.8956
H41.07262.39781.8956

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 117.916 Br2 C1 H4 117.916
H3 C1 H4 124.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability