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: TPSSh/6-311G*

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-499.478856
Energy at 298.15K 
HF Energy-499.478856
Nuclear repulsion energy45.107589
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 TPSSh/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' 3163 3047 12.25 106.68 0.15 0.26
2 A' 1431 1379 13.24 2.51 0.71 0.83
3 A' 827 796 42.65 7.46 0.34 0.50
4 A' 263 253 85.76 0.60 0.01 0.03
5 A" 3318 3196 1.93 54.71 0.75 0.86
6 A" 1016 978 0.78 4.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5008.6 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 4824.3 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 TPSSh/6-311G*
ABC
9.06831 0.52118 0.49352

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 1.127 0.000
Cl2 -0.010 -0.588 0.000
H3 0.111 1.617 0.954
H4 0.111 1.617 -0.954

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71521.07951.0795
Cl21.71522.40572.4057
H31.07952.40571.9088
H41.07952.40571.9088

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 116.979 Br2 C1 H4 116.979
H3 C1 H4 124.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.500      
2 Cl -0.024      
3 H 0.262      
4 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.241 1.249 0.000 1.272
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.672 0.042 0.000
y 0.042 4.584 0.000
z 0.000 0.000 2.278


<r2> (average value of r2) Å2
<r2> 32.381
(<r2>)1/2 5.690

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-499.478828
Energy at 298.15K 
HF Energy-499.478828
Nuclear repulsion energy45.131289
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 TPSSh/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 3169 3052 10.96 105.39 0.15 0.26
2 A1 1430 1378 13.57      
3 A1 829 799 41.18      
4 B1 186i 179i 96.26      
5 B2 3326 3204 1.34      
6 B2 1010 973 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 4789.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 4613.0 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 TPSSh/6-311G*
ABC
9.12982 0.52178 0.49357

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.125
Cl2 0.000 0.000 0.588
H3 0.000 0.957 -1.623
H4 0.000 -0.957 -1.623

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71341.07891.0789
Cl21.71342.40962.4096
H31.07892.40961.9142
H41.07892.40961.9142

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 117.487 Br2 C1 H4 117.487
H3 C1 H4 125.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.505      
2 Cl -0.022      
3 H 0.263      
4 H 0.263      


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 -1.254 1.254
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.662 0.000 0.000
y 0.000 2.270 0.000
z 0.000 0.000 4.575


<r2> (average value of r2) Å2
<r2> 32.370
(<r2>)1/2 5.689