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: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-537.155968
Energy at 298.15K-537.159473
HF Energy-537.155968
Nuclear repulsion energy94.059452
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 LSDA/6-31+G**
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' 3101 3055 1.44      
2 A' 3039 2993 6.43      
3 A' 1444 1423 1.07      
4 A' 1399 1378 11.34      
5 A' 1188 1170 8.78      
6 A' 1131 1114 8.32      
7 A' 693 683 92.37      
8 A' 525 517 34.54      
9 A' 282 278 18.52      
10 A" 3212 3164 1.10      
11 A" 3110 3063 0.33      
12 A" 1199 1181 0.04      
13 A" 1021 1006 0.81      
14 A" 763 752 3.43      
15 A" 215 212 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 11160.1 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 10992.7 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 LSDA/6-31+G**
ABC
1.07578 0.19283 0.17513

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.442 0.817 0.000
C2 0.000 0.886 0.000
Cl3 0.693 -0.840 0.000
H4 -1.991 0.690 0.938
H5 -1.991 0.690 -0.938
H6 0.425 1.348 -0.903
H7 0.425 1.348 0.903

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.44382.70301.09421.09422.14072.1407
C21.44381.86012.20982.20981.09981.0998
Cl32.70301.86013.22933.22932.38262.3826
H41.09422.20983.22931.87593.10782.5041
H51.09422.20983.22931.87592.50413.1078
H62.14071.09982.38263.10782.50411.8061
H72.14071.09982.38262.50413.10781.8061

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 109.145 C1 C2 H6 113.933
C1 C2 H7 113.933 C2 C1 H4 120.447
C2 C1 H5 120.447 Cl3 C2 H6 104.252
Cl3 C2 H7 104.252 H4 C1 H5 118.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.260      
2 C -0.574      
3 Cl -0.030      
4 H 0.191      
5 H 0.191      
6 H 0.240      
7 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.943 1.854 0.000 2.080
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.953 0.957 0.000
y 0.957 -27.063 0.000
z 0.000 0.000 -25.247
Traceless
 xyz
x 0.202 0.957 0.000
y 0.957 -1.463 0.000
z 0.000 0.000 1.261
Polar
3z2-r22.521
x2-y21.110
xy0.957
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.828 -1.501 0.000
y -1.501 6.261 0.000
z 0.000 0.000 4.583


<r2> (average value of r2) Å2
<r2> 73.927
(<r2>)1/2 8.598