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: HF/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at HF/cc-pCVTZ
Rotational Constants (cm-1) from geometry optimized at HF/cc-pCVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pCVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/cc-pCVTZ
 hartrees
Energy at 0K-498.516783
Energy at 298.15K 
HF Energy-498.516783
Nuclear repulsion energy45.379588
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 HF/cc-pCVTZ
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 3307 3020 9.85 110.17 0.10 0.19
2 A1 1520 1388 18.16      
3 A1 863 788 38.48      
4 B1 315i 287i 60.95      
5 B2 3462 3161 0.01      
6 B2 1059 967 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4948.0 cm-1
Scaled (by 0.9131) Zero Point Vibrational Energy (zpe) 4518.0 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 HF/cc-pCVTZ
ABC
9.38311 0.52625 0.49831

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.120
Cl2 0.000 0.000 0.586
H3 0.000 0.944 -1.618
H4 0.000 -0.944 -1.618

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70581.06721.0672
Cl21.70582.39712.3971
H31.06722.39711.8882
H41.06722.39711.8882

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 117.794 Br2 C1 H4 117.794
H3 C1 H4 124.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.187      
2 Cl -0.113      
3 H 0.150      
4 H 0.150      


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 -1.466 1.466
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.454 0.000 0.000
y 0.000 -18.518 0.000
z 0.000 0.000 -17.158
Traceless
 xyz
x -2.616 0.000 0.000
y 0.000 0.288 0.000
z 0.000 0.000 2.328
Polar
3z2-r24.656
x2-y2-1.936
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.365 0.000 0.000
y 0.000 2.792 0.000
z 0.000 0.000 4.445


<r2> (average value of r2) Å2
<r2> 32.061
(<r2>)1/2 5.662