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: HSEh1PBE/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 HSEh1PBE/3-21G
 hartrees
Energy at 0K-535.885582
Energy at 298.15K-535.889053
HF Energy-535.885582
Nuclear repulsion energy92.743287
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 HSEh1PBE/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 3271 3151 2.88      
2 A 3143 3028 4.27      
3 A 3101 2987 6.41      
4 A 3023 2912 8.17      
5 A 1541 1484 6.33      
6 A 1525 1469 14.58      
7 A 1461 1407 16.07      
8 A 1290 1243 50.85      
9 A 1134 1092 5.64      
10 A 1053 1014 17.60      
11 A 1039 1001 14.70      
12 A 663 639 39.41      
13 A 393 378 45.12      
14 A 322 310 9.10      
15 A 170 163 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 11563.7 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 11139.3 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 HSEh1PBE/3-21G
ABC
1.32597 0.17729 0.16148

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.507 0.633 -0.084
C2 1.660 -0.288 0.012
Cl3 -1.141 -0.127 0.006
H4 0.505 1.671 0.218
H5 1.576 -1.097 -0.723
H6 2.589 0.262 -0.176
H7 1.733 -0.753 1.008

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47851.81721.08112.13182.11662.1485
C21.47852.80572.28321.09631.09611.1018
Cl31.81722.80572.44692.97643.75493.1078
H41.08112.28322.44693.11372.54582.8296
H52.13181.09632.97643.11371.78131.7724
H62.11661.09613.75492.54581.78131.7788
H72.14851.10183.10782.82961.77241.7788

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 110.909 C1 C2 H6 109.702
C1 C2 H7 111.914 C2 C1 Cl3 116.336
C2 C1 H4 125.544 H5 C2 H6 108.682
H5 C2 H7 107.476 H6 C2 H7 108.050
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 C -0.672      
3 Cl 0.027      
4 H 0.267      
5 H 0.256      
6 H 0.245      
7 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.146 0.465 0.385 2.229
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.132 0.067 0.126
y 0.067 -24.609 0.562
z 0.126 0.562 -26.874
Traceless
 xyz
x 0.609 0.067 0.126
y 0.067 1.394 0.562
z 0.126 0.562 -2.003
Polar
3z2-r2-4.007
x2-y2-0.523
xy0.067
xz0.126
yz0.562


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.943 0.580 -0.025
y 0.580 3.673 0.024
z -0.025 0.024 2.514


<r2> (average value of r2) Å2
<r2> 78.078
(<r2>)1/2 8.836