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 CH3CH2Cl (Ethyl chloride)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-538.625800
Energy at 298.15K-538.631345
HF Energy-538.178150
Nuclear repulsion energy103.052029
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 MP2/6-311G**
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' 3175 3016 19.26      
2 A' 3131 2976 18.59      
3 A' 3085 2931 14.11      
4 A' 1518 1443 1.82      
5 A' 1506 1431 1.54      
6 A' 1436 1365 6.73      
7 A' 1369 1301 38.27      
8 A' 1115 1060 0.42      
9 A' 1015 965 17.04      
10 A' 724 688 21.41      
11 A' 343 326 1.93      
12 A" 3204 3044 21.45      
13 A" 3181 3023 1.20      
14 A" 1504 1430 7.23      
15 A" 1305 1240 1.39      
16 A" 1118 1062 0.21      
17 A" 804 764 2.86      
18 A" 292 278 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 14913.1 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 14170.5 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 MP2/6-311G**
ABC
1.04997 0.18428 0.16658

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.507 0.638 0.000
C2 0.000 0.810 0.000
H3 1.990 1.621 0.000
H4 1.833 0.089 0.885
H5 1.833 0.089 -0.885
Cl6 -0.825 -0.775 0.000
H7 -0.339 1.345 0.888
H8 -0.339 1.345 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 Cl6 H7 H8
C11.51681.09451.09191.09192.72682.16692.1669
C21.51682.14832.16002.16001.78741.09021.0902
H31.09452.14831.77621.77623.69612.50732.5073
H41.09192.16001.77621.77062.93192.50963.0726
H51.09192.16001.77621.77062.93193.07262.5096
Cl62.72681.78743.69612.93192.93192.34932.3493
H72.16691.09022.50732.50963.07262.34931.7750
H82.16691.09022.50733.07262.50962.34931.7750

picture of Ethyl chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 110.963 C1 C2 H7 111.391
C1 C2 H8 111.391 C2 C1 H3 109.643
C2 C1 H4 110.735 C2 C1 H5 110.735
H3 C1 H4 108.660 H3 C1 H5 108.660
H4 C1 H5 108.351 Cl6 C2 H7 106.948
Cl6 C2 H8 106.948 H7 C2 H8 108.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability