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: PBEPBE/6-311G*

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 PBEPBE/6-311G*
 hartrees
Energy at 0K-499.213505
Energy at 298.15K 
HF Energy-499.213505
Nuclear repulsion energy45.117112
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 PBEPBE/6-311G*
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' 3106 3074 9.96      
2 A' 1380 1366 8.48      
3 A' 829 821 35.28      
4 A' 102 101 99.92      
5 A" 3258 3224 1.18      
6 A" 987 977 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 4831.0 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4780.8 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 PBEPBE/6-311G*
ABC
9.03162 0.52249 0.49392

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 1.123 0.000
Cl2 -0.001 -0.588 0.000
H3 0.008 1.627 0.962
H4 0.008 1.627 -0.962

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71101.08631.0863
Cl21.71102.41512.4151
H31.08632.41511.9245
H41.08632.41511.9245

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 117.648 Br2 C1 H4 117.648
H3 C1 H4 124.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.536      
2 Cl 0.008      
3 H 0.264      
4 H 0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.017 1.095 0.000 1.095
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.856 0.028 0.000
y 0.028 -17.560 0.000
z 0.000 0.000 -18.654
Traceless
 xyz
x -2.749 0.028 0.000
y 0.028 2.195 0.000
z 0.000 0.000 0.554
Polar
3z2-r21.108
x2-y2-3.296
xy0.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.706 0.003 0.000
y 0.003 4.724 0.000
z 0.000 0.000 2.327


<r2> (average value of r2) Å2
<r2> 32.473
(<r2>)1/2 5.698

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-499.213505
Energy at 298.15K-499.214177
HF Energy-499.213505
Nuclear repulsion energy45.108697
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 PBEPBE/6-311G*
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 3106 3073 9.91      
2 A1 1380 1365 8.48      
3 A1 828 820 35.36      
4 B1 95 94 100.04      
5 B2 3258 3224 1.14      
6 B2 987 977 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 4827.1 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4776.9 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 PBEPBE/6-311G*
ABC
9.02254 0.52232 0.49374

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.124
Cl2 0.000 0.000 0.588
H3 0.000 0.963 -1.627
H4 0.000 -0.963 -1.627

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71151.08641.0864
Cl21.71152.41492.4149
H31.08642.41491.9256
H41.08642.41491.9256

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 117.596 Br2 C1 H4 117.596
H3 C1 H4 124.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.536      
2 Cl 0.007      
3 H 0.264      
4 H 0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.097 1.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.858 0.000 0.000
y 0.000 -18.651 0.000
z 0.000 0.000 -17.562
Traceless
 xyz
x -2.751 0.000 0.000
y 0.000 0.559 0.000
z 0.000 0.000 2.192
Polar
3z2-r24.385
x2-y2-2.207
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.706 0.000 0.000
y 0.000 2.328 0.000
z 0.000 0.000 4.725


<r2> (average value of r2) Å2
<r2> 32.478
(<r2>)1/2 5.699