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: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-538.796629
Energy at 298.15K-538.800051
HF Energy-538.796629
Nuclear repulsion energy94.949773
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 mPW1PW91/6-311G**
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 3247 3107 6.78      
2 A 3135 2999 10.78      
3 A 3082 2949 14.51      
4 A 3007 2876 20.48      
5 A 1483 1419 3.68      
6 A 1463 1400 10.44      
7 A 1411 1350 9.17      
8 A 1307 1251 39.89      
9 A 1134 1085 4.66      
10 A 1047 1002 24.31      
11 A 999 955 0.73      
12 A 743 711 30.01      
13 A 371 355 15.53      
14 A 304 291 24.57      
15 A 148 142 1.93      

Unscaled Zero Point Vibrational Energy (zpe) 11439.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10944.4 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 mPW1PW91/6-311G**
ABC
1.42464 0.18436 0.16853

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.447 0.596 -0.058
C2 1.647 -0.263 0.007
Cl3 -1.113 -0.128 0.005
H4 0.448 1.656 0.145
H5 1.603 -1.068 -0.731
H6 2.540 0.334 -0.185
H7 1.764 -0.735 0.993

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47691.72051.07962.13472.11312.1473
C21.47692.76252.26681.09361.09171.0987
Cl31.72052.76252.37462.96623.68663.1017
H41.07962.26682.37463.08572.49642.8579
H52.13471.09362.96623.08571.77281.7634
H62.11311.09173.68662.49641.77281.7697
H72.14731.09873.10172.85791.76341.7697

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 111.428 C1 C2 H6 109.801
C1 C2 H7 112.130 C2 C1 Cl3 119.341
C2 C1 H4 124.181 H5 C2 H6 108.440
H5 C2 H7 107.101 H6 C2 H7 107.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.263      
2 C -0.305      
3 Cl -0.046      
4 H 0.180      
5 H 0.150      
6 H 0.138      
7 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.653 0.358 0.226 1.706
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.013 0.283 0.034
y 0.283 -24.871 0.359
z 0.034 0.359 -26.831
Traceless
 xyz
x 0.838 0.283 0.034
y 0.283 1.051 0.359
z 0.034 0.359 -1.889
Polar
3z2-r2-3.778
x2-y2-0.142
xy0.283
xz0.034
yz0.359


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.494 0.451 -0.007
y 0.451 4.368 -0.017
z -0.007 -0.017 3.306


<r2> (average value of r2) Å2
<r2> 75.772
(<r2>)1/2 8.705