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 CH2CH2Cl (2-chloroethyl radical)

using model chemistry: PBE1PBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-538.514377
Energy at 298.15K-538.517951
HF Energy-538.514377
Nuclear repulsion energy93.936703
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 PBE1PBE/cc-pVDZ
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' 3175 3053 2.73      
2 A' 3117 2997 12.07      
3 A' 1477 1420 0.73      
4 A' 1433 1378 4.55      
5 A' 1230 1182 13.58      
6 A' 1119 1076 8.02      
7 A' 663 637 88.27      
8 A' 580 558 13.46      
9 A' 303 292 12.65      
10 A" 3294 3168 2.44      
11 A" 3189 3067 2.03      
12 A" 1241 1194 0.16      
13 A" 1047 1006 0.76      
14 A" 776 746 2.26      
15 A" 210 202 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 11427.2 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 10987.3 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 PBE1PBE/cc-pVDZ
ABC
1.08991 0.19075 0.17369

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.463 0.822 0.000
C2 0.000 0.870 0.000
Cl3 0.703 -0.836 0.000
H4 -2.008 0.691 0.937
H5 -2.008 0.691 -0.937
H6 0.420 1.340 -0.898
H7 0.420 1.340 0.898

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.46342.72771.09191.09192.14882.1488
C21.46341.84522.22282.22281.09721.0972
Cl32.72771.84523.24933.24932.37122.3712
H41.09192.22283.24931.87383.11142.5129
H51.09192.22283.24931.87382.51293.1114
H62.14881.09722.37123.11142.51291.7964
H72.14881.09722.37122.51293.11141.7964

picture of 2-chloroethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl3 110.533 C1 C2 H6 113.334
C1 C2 H7 113.334 C2 C1 H4 120.193
C2 C1 H5 120.193 Cl3 C2 H6 104.508
Cl3 C2 H7 104.508 H4 C1 H5 118.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.064      
2 C -0.123      
3 Cl -0.157      
4 H 0.072      
5 H 0.072      
6 H 0.101      
7 H 0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.959 1.787 0.000 2.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.375 0.734 0.000
y 0.734 -25.937 0.000
z 0.000 0.000 -24.724
Traceless
 xyz
x -0.045 0.734 0.000
y 0.734 -0.887 0.000
z 0.000 0.000 0.932
Polar
3z2-r21.864
x2-y20.562
xy0.734
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.281 -1.128 0.000
y -1.128 4.938 0.000
z 0.000 0.000 3.766


<r2> (average value of r2) Å2
<r2> 73.880
(<r2>)1/2 8.595