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: HSEh1PBE/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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-538.581497
Energy at 298.15K-538.585078
HF Energy-538.581497
Nuclear repulsion energy94.296915
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/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' 3169 3048 3.02      
2 A' 3112 2993 9.84      
3 A' 1495 1438 0.73      
4 A' 1459 1403 5.11      
5 A' 1243 1195 10.80      
6 A' 1109 1067 8.89      
7 A' 678 652 82.71      
8 A' 571 549 19.10      
9 A' 301 290 13.07      
10 A" 3277 3152 3.01      
11 A" 3175 3053 1.07      
12 A" 1255 1207 0.41      
13 A" 1059 1019 0.62      
14 A" 781 751 1.36      
15 A" 207 199 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 11444.7 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 11007.5 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/aug-cc-pVTZ
ABC
1.09951 0.19199 0.17476

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.456 0.818 0.000
C2 0.000 0.871 0.000
Cl3 0.700 -0.835 0.000
H4 -1.998 0.701 0.928
H5 -1.998 0.701 -0.928
H6 0.416 1.333 -0.891
H7 0.416 1.333 0.891

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.45692.71681.08101.08102.13612.1361
C21.45691.84432.20942.20941.08641.0864
Cl32.71681.84433.24043.24042.36122.3612
H41.08102.20943.24041.85613.08782.4952
H51.08102.20943.24041.85612.49523.0878
H62.13611.08642.36123.08782.49521.7824
H72.13611.08642.36122.49523.08781.7824

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 110.219 C1 C2 H6 113.452
C1 C2 H7 113.452 C2 C1 H4 120.324
C2 C1 H5 120.324 Cl3 C2 H6 104.353
Cl3 C2 H7 104.353 H4 C1 H5 118.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.752      
2 C -0.082      
3 Cl -0.263      
4 H 0.339      
5 H 0.339      
6 H 0.209      
7 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.957 1.801 0.000 2.039
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.778 0.803 0.000
y 0.803 -26.465 0.000
z 0.000 0.000 -25.043
Traceless
 xyz
x -0.024 0.803 0.000
y 0.803 -1.055 0.000
z 0.000 0.000 1.079
Polar
3z2-r22.158
x2-y20.687
xy0.803
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.978 -1.188 0.000
y -1.188 6.739 0.000
z 0.000 0.000 5.305


<r2> (average value of r2) Å2
<r2> 73.741
(<r2>)1/2 8.587