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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-537.565115
Energy at 298.15K-537.568820
HF Energy-537.565115
Nuclear repulsion energy94.943159
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 HF/Def2TZVPP
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 3346 3033 11.10      
2 A 3238 2934 18.93      
3 A 3204 2905 23.03      
4 A 3138 2845 23.36      
5 A 1600 1450 2.67      
6 A 1588 1440 8.10      
7 A 1535 1391 3.25      
8 A 1401 1270 44.45      
9 A 1178 1068 0.83      
10 A 1105 1002 14.47      
11 A 1091 989 4.74      
12 A 760 689 33.24      
13 A 509 462 22.79      
14 A 353 320 1.95      
15 A 185 167 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 12115.5 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 10981.4 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 HF/Def2TZVPP
ABC
1.40773 0.18458 0.16868

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.453 0.623 -0.076
C2 1.631 -0.287 0.008
Cl3 -1.114 -0.125 0.007
H4 0.602 1.655 0.188
H5 1.451 -1.238 -0.475
H6 2.487 0.182 -0.465
H7 1.897 -0.483 1.045

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.49031.73871.07542.14882.11682.1358
C21.49032.74972.20441.08171.08441.0880
Cl31.73872.74972.47952.83753.64453.2047
H41.07542.20442.47953.08652.47932.6418
H52.14881.08172.83753.08651.75681.7543
H62.11681.08443.64452.47931.75681.7521
H72.13581.08803.20472.64181.75431.7521

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 112.356 C1 C2 H6 109.598
C1 C2 H7 110.902 C2 C1 Cl3 116.553
C2 C1 H4 117.530 H5 C2 H6 108.403
H5 C2 H7 107.908 H6 C2 H7 107.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.005      
2 C -0.145      
3 Cl -0.128      
4 H 0.079      
5 H 0.069      
6 H 0.064      
7 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.743 0.472 0.260 1.825
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.359 0.368 0.066
y 0.368 -24.965 0.484
z 0.066 0.484 -26.630
Traceless
 xyz
x 0.439 0.368 0.066
y 0.368 1.030 0.484
z 0.066 0.484 -1.468
Polar
3z2-r2-2.937
x2-y2-0.394
xy0.368
xz0.066
yz0.484


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.363 0.353 -0.025
y 0.353 4.740 -0.007
z -0.025 -0.007 4.070


<r2> (average value of r2) Å2
<r2> 75.701
(<r2>)1/2 8.701