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: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-535.811627
Energy at 298.15K 
HF Energy-535.738384
Nuclear repulsion energy92.061988
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 B2PLYP=FULLultrafine/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 3271 4.32      
2 A 3147 3147 5.77      
3 A 3109 3109 8.18      
4 A 3035 3035 8.77      
5 A 1567 1567 5.01      
6 A 1551 1551 11.27      
7 A 1483 1483 9.64      
8 A 1304 1304 53.42      
9 A 1126 1126 4.47      
10 A 1072 1072 5.44      
11 A 1034 1034 21.00      
12 A 646 646 37.94      
13 A 446 446 44.31      
14 A 324 324 2.78      
15 A 177 177 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 11646.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11646.2 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 B2PLYP=FULLultrafine/3-21G
ABC
1.31558 0.17396 0.15866

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.517 0.638 -0.095
C2 1.675 -0.292 0.013
Cl3 -1.153 -0.126 0.007
H4 0.516 1.661 0.249
H5 1.583 -1.111 -0.705
H6 2.601 0.254 -0.190
H7 1.750 -0.734 1.017

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.48851.83951.07932.13692.12082.1535
C21.48852.83232.28281.09341.09401.0992
Cl31.83952.83232.45722.99343.77813.1329
H41.07932.28282.45723.11962.55332.8013
H52.13691.09342.99343.11961.77901.7705
H62.12081.09403.77812.55331.77901.7763
H72.15351.09923.13292.80131.77051.7763

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 110.788 C1 C2 H6 109.468
C1 C2 H7 111.779 C2 C1 Cl3 116.254
C2 C1 H4 124.734 H5 C2 H6 108.836
H5 C2 H7 107.709 H6 C2 H7 108.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability