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 CHClCH3 (1-chloroethyl radical)

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-536.081797
Energy at 298.15K-536.085255
HF Energy-536.081797
Nuclear repulsion energy 
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 wB97X-D/3-21G
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 3281 3281 2.14      
2 A 3159 3159 4.38      
3 A 3116 3116 6.42      
4 A 3042 3042 7.29      
5 A 1551 1551 7.30      
6 A 1535 1535 14.97      
7 A 1475 1475 17.13      
8 A 1294 1294 50.89      
9 A 1133 1133 5.91      
10 A 1061 1061 12.59      
11 A 1044 1044 18.64      
12 A 676 676 37.67      
13 A 376 376 36.52      
14 A 316 316 18.99      
15 A 170 170 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 11614.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11614.9 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 wB97X-D/3-21G
ABC
1.32766 0.17676 0.16103

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.505 0.632 -0.081
C2 1.664 -0.288 0.011
Cl3 -1.143 -0.127 0.006
H4 0.505 1.673 0.209
H5 1.588 -1.087 -0.734
H6 2.591 0.269 -0.163
H7 1.730 -0.763 1.002

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.48321.81601.08032.13472.11902.1492
C21.48322.81152.28621.09541.09471.1003
Cl31.81602.81152.44862.98803.75813.1060
H41.08032.28622.44863.11132.54142.8388
H52.13471.09542.98803.11131.78031.7716
H62.11901.09473.75812.54141.78031.7778
H72.14921.10033.10602.83881.77161.7778

picture of 1-chloroethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.862 C1 C2 H6 109.650
C1 C2 H7 111.734 C2 C1 Cl3 116.543
C2 C1 H4 125.484 H5 C2 H6 108.754
H5 C2 H7 107.574 H6 C2 H7 108.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.374      
2 C -0.655      
3 Cl 0.023      
4 H 0.267      
5 H 0.252      
6 H 0.241      
7 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.178 0.487 0.381 2.265
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.133 0.061 0.131
y 0.061 -24.522 0.553
z 0.131 0.553 -26.808
Traceless
 xyz
x 0.532 0.061 0.131
y 0.061 1.449 0.553
z 0.131 0.553 -1.981
Polar
3z2-r2-3.961
x2-y2-0.611
xy0.061
xz0.131
yz0.553


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.865 0.599 -0.025
y 0.599 3.650 0.028
z -0.025 0.028 2.503


<r2> (average value of r2) Å2
<r2> 78.202
(<r2>)1/2 8.843