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: ROHF/aug-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 ROHF/aug-cc-pVDZ
 hartrees
Energy at 0K-537.530011
Energy at 298.15K-537.533766
HF Energy-537.530011
Nuclear repulsion energy94.169776
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 ROHF/aug-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' 3301 3301 5.98      
2 A' 3262 3262 19.06      
3 A' 1599 1599 0.38      
4 A' 1564 1564 3.30      
5 A' 1366 1366 32.97      
6 A' 1145 1145 9.78      
7 A' 710 710 124.45      
8 A' 636 636 1.43      
9 A' 333 333 13.97      
10 A" 3415 3415 8.34      
11 A" 3329 3329 3.11      
12 A" 1353 1353 0.46      
13 A" 1143 1143 0.67      
14 A" 828 828 0.61      
15 A" 230 230 2.78      

Unscaled Zero Point Vibrational Energy (zpe) 12106.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12106.3 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 ROHF/aug-cc-pVDZ
ABC
1.09034 0.19135 0.17393

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.482 0.814 0.000
C2 0.000 0.865 0.000
Cl3 0.712 -0.823 0.000
H4 -2.004 0.623 0.925
H5 -2.004 0.623 -0.925
H6 0.400 1.338 -0.889
H7 0.400 1.338 0.889

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.48302.73751.07941.07942.14652.1465
C21.48301.83182.22072.22071.08351.0835
Cl32.73751.83183.21323.21322.35742.3574
H41.07942.22073.21321.85033.09562.5089
H51.07942.22073.21321.85032.50893.0956
H62.14651.08352.35743.09562.50891.7774
H72.14651.08352.35742.50893.09561.7774

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 110.914 C1 C2 H6 112.583
C1 C2 H7 112.583 C2 C1 H4 119.309
C2 C1 H5 119.309 Cl3 C2 H6 105.011
Cl3 C2 H7 105.011 H4 C1 H5 117.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.546      
2 C -0.151      
3 Cl -0.171      
4 H -0.154      
5 H -0.154      
6 H 0.042      
7 H 0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.042 1.913 0.000 2.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.268 1.155 0.000
y 1.155 -26.731 0.000
z 0.000 0.000 -25.277
Traceless
 xyz
x -0.264 1.155 0.000
y 1.155 -0.958 0.000
z 0.000 0.000 1.222
Polar
3z2-r22.445
x2-y20.463
xy1.155
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 74.075
(<r2>)1/2 8.607