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: B3PW91/TZVP

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 B3PW91/TZVP
 hartrees
Energy at 0K-499.411639
Energy at 298.15K 
HF Energy-499.411639
Nuclear repulsion energy45.240917
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 B3PW91/TZVP
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' 3181 3067 6.38 109.34 0.13 0.23
2 A' 1414 1364 9.80 1.35 0.68 0.81
3 A' 842 812 40.59 6.89 0.29 0.45
4 A' 209 202 97.50 0.00 0.75 0.86
5 A" 3337 3218 0.00 48.14 0.75 0.86
6 A" 1000 964 0.57 3.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4991.2 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 4813.0 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 B3PW91/TZVP
ABC
9.16892 0.52448 0.49610

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 1.122 0.000
Cl2 -0.000 -0.587 0.000
H3 0.000 1.622 0.955
H4 0.000 1.622 -0.955

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70841.07801.0780
Cl21.70842.40602.4060
H31.07802.40601.9101
H41.07802.40601.9101

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 117.632 Br2 C1 H4 117.632
H3 C1 H4 124.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.296      
2 Cl -0.043      
3 H 0.169      
4 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.001 1.140 0.000 1.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.505 0.001 0.000
y 0.001 -17.226 0.000
z 0.000 0.000 -18.349
Traceless
 xyz
x -2.718 0.001 0.000
y 0.001 2.201 0.000
z 0.000 0.000 0.517
Polar
3z2-r21.033
x2-y2-3.279
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.153 0.000 0.000
y 0.000 4.599 0.000
z 0.000 0.000 2.515


<r2> (average value of r2) Å2
<r2> 32.159
(<r2>)1/2 5.671

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-499.411639
Energy at 298.15K 
HF Energy-499.411639
Nuclear repulsion energy45.241694
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 B3PW91/TZVP
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 3180 3067 6.39 109.45 0.13 0.23
2 A1 1415 1364 9.81      
3 A1 842 812 40.54      
4 B1 213 205 97.44      
5 B2 3336 3217 0.01      
6 B2 1000 964 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 4992.6 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 4814.3 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 B3PW91/TZVP
ABC
9.17476 0.52447 0.49611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.122
Cl2 0.000 0.000 0.587
H3 0.000 0.955 -1.622
H4 0.000 -0.955 -1.622

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70821.07811.0781
Cl21.70822.40652.4065
H31.07812.40651.9095
H41.07812.40651.9095

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 117.675 Br2 C1 H4 117.675
H3 C1 H4 124.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.296      
2 Cl -0.043      
3 H 0.169      
4 H 0.169      


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 -1.139 1.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.505 0.000 0.000
y 0.000 -18.351 0.000
z 0.000 0.000 -17.223
Traceless
 xyz
x -2.717 0.000 0.000
y 0.000 0.513 0.000
z 0.000 0.000 2.205
Polar
3z2-r24.410
x2-y2-2.153
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.153 0.000 0.000
y 0.000 2.515 0.000
z 0.000 0.000 4.599


<r2> (average value of r2) Å2
<r2> 32.160
(<r2>)1/2 5.671