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: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-538.013289
Energy at 298.15K-538.016951
HF Energy-537.539358
Nuclear repulsion energy94.538009
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 MP2=FULL/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' 3217 3047 4.11      
2 A' 3147 2981 16.47      
3 A' 1534 1453 0.40      
4 A' 1506 1426 6.20      
5 A' 1342 1271 21.75      
6 A' 1120 1060 7.80      
7 A' 709 671 101.53      
8 A' 620 587 10.12      
9 A' 312 296 11.90      
10 A" 3336 3159 4.69      
11 A" 3218 3048 4.12      
12 A" 1312 1243 0.08      
13 A" 1119 1060 2.56      
14 A" 804 761 2.59      
15 A" 213 202 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 11753.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 11131.8 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 MP2=FULL/6-311G*
ABC
1.09996 0.19316 0.17572

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.473 0.801 0.000
C2 0.000 0.856 0.000
Cl3 0.710 -0.820 0.000
H4 -2.008 0.651 0.927
H5 -2.008 0.651 -0.927
H6 0.394 1.342 -0.890
H7 0.394 1.342 0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47352.71811.08121.08122.13762.1376
C21.47351.81982.22102.22101.08811.0881
Cl32.71811.81983.22593.22592.35922.3592
H41.08122.22103.22591.85483.09022.4993
H51.08122.22103.22591.85482.49933.0902
H62.13761.08812.35923.09022.49931.7805
H72.13761.08812.35922.49933.09021.7805

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 110.804 C1 C2 H6 112.242
C1 C2 H7 112.242 C2 C1 H4 119.988
C2 C1 H5 119.988 Cl3 C2 H6 105.675
Cl3 C2 H7 105.675 H4 C1 H5 118.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability