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: B1B95/6-31+G**

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 B1B95/6-31+G**
 hartrees
Energy at 0K-959.101835
Energy at 298.15K 
HF Energy-959.101835
Nuclear repulsion energy126.107576
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 B1B95/6-31+G**
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 3305 3161 0.42      
2 A1 775 742 8.83      
3 A1 319 305 0.30      
4 B1 320i 306i 59.93      
5 B2 1264 1209 54.11      
6 B2 953 912 170.76      

Unscaled Zero Point Vibrational Energy (zpe) 3147.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3011.2 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 B1B95/6-31+G**
ABC
1.63333 0.11115 0.10407

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.666
H2 0.000 0.000 1.743
Cl3 0.000 1.473 -0.169
Cl4 0.000 -1.473 -0.169

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07751.69261.6926
H21.07752.41332.4133
Cl31.69262.41332.9452
Cl41.69262.41332.9452

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 119.538 Cl3 C1 Cl4 120.923
Cl4 C1 H2 119.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.383      
2 H 0.232      
3 Cl 0.075      
4 Cl 0.075      


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 0.956 0.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.012 0.000 0.000
y 0.000 -31.078 0.000
z 0.000 0.000 -29.003
Traceless
 xyz
x -1.971 0.000 0.000
y 0.000 -0.571 0.000
z 0.000 0.000 2.542
Polar
3z2-r25.084
x2-y2-0.933
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.281 0.000 0.000
y 0.000 7.163 0.000
z 0.000 0.000 4.321


<r2> (average value of r2) Å2
<r2> 99.569
(<r2>)1/2 9.978

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-959.102326
Energy at 298.15K-959.103097
HF Energy-959.102326
Nuclear repulsion energy125.976613
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 B1B95/6-31+G**
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' 3269 3127 0.83      
2 A' 778 744 13.14      
3 A' 434 415 33.22      
4 A' 311 297 1.52      
5 A" 1269 1213 47.00      
6 A" 928 887 192.48      

Unscaled Zero Point Vibrational Energy (zpe) 3494.1 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3342.5 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 B1B95/6-31+G**
ABC
1.58980 0.11149 0.10437

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.685 0.000
H2 -0.434 1.669 0.000
Cl3 0.011 -0.170 1.470
Cl4 0.011 -0.170 -1.470

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08011.70011.7001
H21.08012.39582.3958
Cl31.70012.39582.9393
Cl41.70012.39582.9393

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 117.268 Cl3 C1 Cl4 119.638
Cl4 C1 H2 117.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.361      
2 H 0.226      
3 Cl 0.068      
4 Cl 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.484 0.884 0.000 1.008
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.767 -0.907 0.000
y -0.907 -29.380 0.000
z 0.000 0.000 -31.206
Traceless
 xyz
x -1.474 -0.907 0.000
y -0.907 2.107 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.266
x2-y2-2.387
xy-0.907
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.342 -0.079 0.000
y -0.079 4.352 0.000
z 0.000 0.000 7.230


<r2> (average value of r2) Å2
<r2> 99.437
(<r2>)1/2 9.972