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 CHCl2 (dichloromethyl radical)

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-958.532786
Energy at 298.15K 
HF Energy-958.477325
Nuclear repulsion energy120.760987
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/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 3350 3350 0.61      
2 A1 685 685 13.56      
3 A1 290 290 0.75      
4 B1 428i 428i 88.51      
5 B2 1241 1241 61.18      
6 B2 854 854 149.49      

Unscaled Zero Point Vibrational Energy (zpe) 2996.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2996.4 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/6-31G
ABC
1.49160 0.10186 0.09535

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.705
H2 0.000 0.000 1.781
Cl3 0.000 1.538 -0.177
Cl4 0.000 -1.538 -0.177

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07551.77341.7734
H21.07552.48982.4898
Cl31.77342.48983.0766
Cl41.77342.48983.0766

picture of dichloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl3 C1 H2 119.836 Cl3 C1 Cl4 120.329
Cl4 C1 H2 119.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.453      
2 H 0.236      
3 Cl 0.108      
4 Cl 0.108      


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 1.315 1.315
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.307 0.000 0.000
y 0.000 -32.709 0.000
z 0.000 0.000 -29.085
Traceless
 xyz
x -1.410 0.000 0.000
y 0.000 -2.013 0.000
z 0.000 0.000 3.423
Polar
3z2-r26.846
x2-y20.402
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.574 0.000 0.000
y 0.000 6.691 0.000
z 0.000 0.000 3.227


<r2> (average value of r2) Å2
<r2> 107.269
(<r2>)1/2 10.357

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-958.534150
Energy at 298.15K-958.534899
HF Energy-958.478326
Nuclear repulsion energy120.361220
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/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' 3297 3297 1.24      
2 A' 709 709 27.03      
3 A' 522 522 23.81      
4 A' 285 285 0.67      
5 A" 1253 1253 46.05      
6 A" 810 810 180.06      

Unscaled Zero Point Vibrational Energy (zpe) 3438.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3438.2 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 B2PLYP/6-31G
ABC
1.42809 0.10196 0.09540

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.013 0.737 0.000
H2 -0.536 1.667 0.000
Cl3 0.013 -0.179 1.537
Cl4 0.013 -0.179 -1.537

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08001.78871.7887
H21.08002.46352.4635
Cl31.78872.46353.0731
Cl41.78872.46353.0731

picture of dichloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl3 C1 H2 116.156 Cl3 C1 Cl4 118.417
Cl4 C1 H2 116.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.409      
2 H 0.230      
3 Cl 0.090      
4 Cl 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.703 1.220 0.000 1.408
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.956 -1.068 0.000
y -1.068 -29.686 0.000
z 0.000 0.000 -33.039
Traceless
 xyz
x -0.593 -1.068 0.000
y -1.068 2.812 0.000
z 0.000 0.000 -2.218
Polar
3z2-r2-4.437
x2-y2-2.270
xy-1.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.701 -0.237 0.000
y -0.237 3.257 0.000
z 0.000 0.000 6.845


<r2> (average value of r2) Å2
<r2> 107.402
(<r2>)1/2 10.363