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: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-538.742440
Energy at 298.15K-538.746012
HF Energy-538.742440
Nuclear repulsion energy94.007235
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 B3PW91/aug-cc-pVTZ
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' 3157 3047 3.20      
2 A' 3102 2994 9.69      
3 A' 1493 1441 0.67      
4 A' 1457 1407 4.85      
5 A' 1236 1193 10.27      
6 A' 1102 1064 9.27      
7 A' 676 653 77.28      
8 A' 552 533 25.75      
9 A' 299 289 13.40      
10 A" 3264 3150 3.31      
11 A" 3164 3054 1.12      
12 A" 1251 1207 0.40      
13 A" 1054 1018 0.59      
14 A" 780 753 1.35      
15 A" 213 206 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 11400.9 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 11003.0 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 B3PW91/aug-cc-pVTZ
ABC
1.09845 0.19037 0.17340

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.456 0.828 0.000
C2 0.000 0.876 0.000
Cl3 0.700 -0.843 0.000
H4 -1.999 0.717 0.928
H5 -1.999 0.717 -0.928
H6 0.420 1.333 -0.892
H7 0.420 1.333 0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.45652.72691.08121.08122.13732.1373
C21.45651.85552.20992.20991.08641.0864
Cl32.72691.85553.25233.25232.36742.3674
H41.08122.20993.25231.85593.08932.4967
H51.08122.20993.25231.85592.49673.0893
H62.13731.08642.36743.08932.49671.7838
H72.13731.08642.36742.49673.08931.7838

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 110.263 C1 C2 H6 113.591
C1 C2 H7 113.591 C2 C1 H4 120.394
C2 C1 H5 120.394 Cl3 C2 H6 104.090
Cl3 C2 H7 104.090 H4 C1 H5 118.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.728      
2 C -0.069      
3 Cl -0.283      
4 H 0.330      
5 H 0.330      
6 H 0.210      
7 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.979 1.832 0.000 2.077
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.666 0.785 0.000
y 0.785 -26.385 0.000
z 0.000 0.000 -24.973
Traceless
 xyz
x 0.013 0.785 0.000
y 0.785 -1.066 0.000
z 0.000 0.000 1.053
Polar
3z2-r22.106
x2-y20.720
xy0.785
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.046 -1.237 0.000
y -1.237 6.800 0.000
z 0.000 0.000 5.317


<r2> (average value of r2) Å2
<r2> 74.096
(<r2>)1/2 8.608