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: B2PLYP=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 B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-499.232312
Energy at 298.15K 
HF Energy-499.145440
Nuclear repulsion energy45.273091
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 B2PLYP=FULL/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' 3238 3238 7.34 100.67 0.12 0.22
2 A' 1463 1463 15.53 3.74 0.62 0.76
3 A' 857 857 37.89 7.26 0.30 0.46
4 A' 190 190 79.43 0.85 0.38 0.55
5 A" 3392 3392 0.19 50.18 0.75 0.86
6 A" 1027 1027 0.18 6.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5082.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5082.8 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 B2PLYP=FULL/6-31G**
ABC
9.21186 0.52482 0.49685

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 1.121 0.000
Cl2 -0.007 -0.586 0.000
H3 0.077 1.620 0.950
H4 0.077 1.620 -0.950

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70761.07631.0763
Cl21.70762.40382.4038
H31.07632.40381.8999
H41.07632.40381.8999

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 117.619 Br2 C1 H4 117.619
H3 C1 H4 123.922
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-499.232305
Energy at 298.15K 
HF Energy-499.145422
Nuclear repulsion energy45.285576
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 B2PLYP=FULL/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 3241 3241 6.73 100.13 0.12 0.22
2 A1 1463 1463 15.75      
3 A1 858 858 37.21      
4 B1 134i 134i 84.25      
5 B2 3396 3396 0.10      
6 B2 1025 1025 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 4924.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4924.0 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 B2PLYP=FULL/6-31G**
ABC
9.24313 0.52513 0.49690

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.120
Cl2 0.000 0.000 0.586
H3 0.000 0.951 -1.623
H4 0.000 -0.951 -1.623

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70671.07601.0760
Cl21.70672.40562.4056
H31.07602.40561.9024
H41.07602.40561.9024

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 117.866 Br2 C1 H4 117.866
H3 C1 H4 124.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability