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: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-534.657395
Energy at 298.15K-534.660521
HF Energy-534.657395
Nuclear repulsion energy95.235158
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/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 3185 3128 0.88      
2 A 3067 3012 3.33      
3 A 2961 2908 9.79      
4 A 2925 2872 8.90      
5 A 1482 1455 6.68      
6 A 1456 1430 15.06      
7 A 1399 1374 19.21      
8 A 1282 1259 30.12      
9 A 1128 1108 8.51      
10 A 1055 1036 27.36      
11 A 997 979 4.96      
12 A 739 726 25.27      
13 A 353 347 1.26      
14 A 264 259 50.01      
15 A 31 30 16.11      

Unscaled Zero Point Vibrational Energy (zpe) 11161.8 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 10960.8 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/3-21G*
ABC
1.40898 0.18706 0.17045

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.442 0.596 0.000
C2 1.632 -0.263 -0.000
Cl3 -1.105 -0.128 -0.000
H4 0.458 1.686 -0.001
H5 1.665 -0.929 -0.889
H6 2.548 0.354 -0.000
H7 1.665 -0.929 0.889

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.46751.70871.08982.14782.11912.1477
C21.46752.74052.27531.11151.10341.1115
Cl31.70872.74052.39453.01753.68423.0175
H41.08982.27532.39453.01442.47863.0149
H52.14781.11153.01753.01441.79281.7775
H62.11911.10343.68422.47861.79281.7928
H72.14771.11153.01753.01491.77751.7928

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 112.035 C1 C2 H6 110.226
C1 C2 H7 112.030 C2 C1 Cl3 119.078
C2 C1 H4 125.024 H5 C2 H6 108.080
H5 C2 H7 106.183 H6 C2 H7 108.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.339      
2 C -0.679      
3 Cl 0.037      
4 H 0.252      
5 H 0.245      
6 H 0.239      
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
  1.450 0.288 -0.001 1.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.370 0.198 -0.000
y 0.198 -24.401 -0.001
z -0.000 -0.001 -26.724
Traceless
 xyz
x 1.192 0.198 -0.000
y 0.198 1.146 -0.001
z -0.000 -0.001 -2.339
Polar
3z2-r2-4.678
x2-y20.031
xy0.198
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.059 0.346 0.000
y 0.346 4.024 0.000
z 0.000 0.000 2.815


<r2> (average value of r2) Å2
<r2> 74.982
(<r2>)1/2 8.659