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: mPW1PW91/6-31+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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-959.044101
Energy at 298.15K 
HF Energy-959.044101
Nuclear repulsion energy125.795958
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 mPW1PW91/6-31+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 3306 3146 0.55      
2 A1 770 733 9.16      
3 A1 318 303 0.32      
4 B1 318i 303i 57.65      
5 B2 1264 1204 53.23      
6 B2 947 901 164.69      

Unscaled Zero Point Vibrational Energy (zpe) 3143.3 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 2991.8 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 mPW1PW91/6-31+G**
ABC
1.62484 0.11060 0.10356

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.668
H2 0.000 0.000 1.746
Cl3 0.000 1.476 -0.169
Cl4 0.000 -1.476 -0.169

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.07851.69701.6970
H21.07852.41832.4183
Cl31.69702.41832.9525
Cl41.69702.41832.9525

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 119.551 Cl3 C1 Cl4 120.898
Cl4 C1 H2 119.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.415      
2 H 0.241      
3 Cl 0.087      
4 Cl 0.087      


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 1.002 1.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.078 0.000 0.000
y 0.000 -31.216 0.000
z 0.000 0.000 -28.998
Traceless
 xyz
x -1.971 0.000 0.000
y 0.000 -0.678 0.000
z 0.000 0.000 2.649
Polar
3z2-r25.298
x2-y2-0.862
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.266 0.000 0.000
y 0.000 7.075 0.000
z 0.000 0.000 4.303


<r2> (average value of r2) Å2
<r2> 100.008
(<r2>)1/2 10.000

Conformer 2 (CS)

Jump to S1C1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-959.044565
Energy at 298.15K-959.045332
HF Energy-959.044565
Nuclear repulsion energy125.681123
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 mPW1PW91/6-31+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' 3274 3116 0.83      
2 A' 774 737 13.27      
3 A' 433 412 32.27      
4 A' 310 295 1.52      
5 A" 1269 1208 46.58      
6 A" 923 878 185.77      

Unscaled Zero Point Vibrational Energy (zpe) 3491.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 3322.9 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 mPW1PW91/6-31+G**
ABC
1.58489 0.11093 0.10385

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.686 0.000
H2 -0.428 1.673 0.000
Cl3 0.011 -0.170 1.473
Cl4 0.011 -0.170 -1.473

Atom - Atom Distances (Å)
  C1 H2 Cl3 Cl4
C11.08091.70401.7040
H21.08092.40062.4006
Cl31.70402.40062.9468
Cl41.70402.40062.9468

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 117.324 Cl3 C1 Cl4 119.691
Cl4 C1 H2 117.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.395      
2 H 0.235      
3 Cl 0.080      
4 Cl 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.474 0.932 0.000 1.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.838 -0.899 0.000
y -0.899 -29.368 0.000
z 0.000 0.000 -31.338
Traceless
 xyz
x -1.485 -0.899 0.000
y -0.899 2.220 0.000
z 0.000 0.000 -0.735
Polar
3z2-r2-1.470
x2-y2-2.470
xy-0.899
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.327 -0.079 0.000
y -0.079 4.332 0.000
z 0.000 0.000 7.144


<r2> (average value of r2) Å2
<r2> 99.875
(<r2>)1/2 9.994