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: PBEPBE/6-311G*

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 PBEPBE/6-311G*
 hartrees
Energy at 0K-958.645184
Energy at 298.15K 
HF Energy-958.645184
Nuclear repulsion energy124.947766
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 3194 3161 0.39      
2 A1 737 729 7.13      
3 A1 309 306 0.08      
4 B1 348i 344i 65.69      
5 B2 1219 1207 41.83      
6 B2 892 882 182.12      

Unscaled Zero Point Vibrational Energy (zpe) 3001.5 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 2970.3 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 PBEPBE/6-311G*
ABC
1.61458 0.10895 0.10207

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 0.669
H2 0.000 0.000 1.755
Cl3 0.000 1.487 -0.170
Cl4 0.000 -1.487 -0.170

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08521.70771.7077
H21.08522.43212.4321
Cl31.70772.43212.9748
Cl41.70772.43212.9748

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 119.427 Cl3 C1 Cl4 121.146
Cl4 C1 H2 119.427
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 -0.418      
2 H 0.304      
3 Cl 0.057      
4 Cl 0.057      


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 0.897 0.897
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.555 0.000 0.000
y 0.000 -31.358 0.000
z 0.000 0.000 -29.407
Traceless
 xyz
x -2.172 0.000 0.000
y 0.000 -0.378 0.000
z 0.000 0.000 2.550
Polar
3z2-r25.100
x2-y2-1.196
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.239 0.000 0.000
y 0.000 7.342 0.000
z 0.000 0.000 3.744


<r2> (average value of r2) Å2
<r2> 101.393
(<r2>)1/2 10.069

Conformer 2 (CS)

Jump to S1C1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-958.645951
Energy at 298.15K-958.646698
HF Energy-958.645951
Nuclear repulsion energy124.726398
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' 3152 3119 3.35      
2 A' 744 736 13.33      
3 A' 456 451 35.63      
4 A' 303 300 0.80      
5 A" 1228 1215 34.05      
6 A" 856 847 209.61      

Unscaled Zero Point Vibrational Energy (zpe) 3369.1 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 3334.0 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 PBEPBE/6-311G*
ABC
1.55940 0.10926 0.10234

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 0.012 0.694 0.000
H2 -0.493 1.658 0.000
Cl3 0.012 -0.171 1.484
Cl4 0.012 -0.171 -1.484

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08871.71821.7182
H21.08872.40962.4096
Cl31.71822.40962.9688
Cl41.71822.40962.9688

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 116.493 Cl3 C1 Cl4 119.521
Cl4 C1 H2 116.493
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 -0.399      
2 H 0.298      
3 Cl 0.051      
4 Cl 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.568 0.792 0.000 0.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.234 -0.980 0.000
y -0.980 -29.907 0.000
z 0.000 0.000 -31.545
Traceless
 xyz
x -1.508 -0.980 0.000
y -0.980 1.982 0.000
z 0.000 0.000 -0.475
Polar
3z2-r2-0.950
x2-y2-2.327
xy-0.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.336 -0.167 0.000
y -0.167 3.781 0.000
z 0.000 0.000 7.439


<r2> (average value of r2) Å2
<r2> 101.307
(<r2>)1/2 10.065