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: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-536.830152
Energy at 298.15K-536.835507
Nuclear repulsion energy100.452606
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 BLYP/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' 3045 3025 26.93      
2 A' 3028 3008 3.43      
3 A' 2976 2956 13.64      
4 A' 1532 1522 4.17      
5 A' 1507 1498 2.90      
6 A' 1428 1419 6.31      
7 A' 1301 1293 36.06      
8 A' 1070 1063 4.85      
9 A' 940 934 19.23      
10 A' 592 589 31.62      
11 A' 324 322 3.89      
12 A" 3094 3074 18.79      
13 A" 3060 3040 4.06      
14 A" 1516 1506 8.39      
15 A" 1276 1268 0.80      
16 A" 1066 1059 0.11      
17 A" 796 790 5.87      
18 A" 252 250 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 14401.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 14307.6 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 BLYP/3-21G*
ABC
1.00953 0.17378 0.15724

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.530 0.689 0.000
C2 0.000 0.849 0.000
H3 1.999 1.689 0.000
H4 1.863 0.142 0.895
H5 1.863 0.142 -0.895
Cl6 -0.834 -0.819 0.000
H7 -0.364 1.362 0.899
H8 -0.364 1.362 -0.899

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 Cl6 H7 H8
C11.53881.10511.10041.10042.80432.20252.2025
C21.53882.16862.18492.18491.86521.09761.0976
H31.10512.16861.79251.79253.78422.54952.5495
H41.10042.18491.79251.79053.00052.53963.1097
H51.10042.18491.79251.79053.00053.10972.5396
Cl62.80431.86523.78423.00053.00052.40612.4061
H72.20251.09762.54952.53963.10972.40611.7989
H82.20251.09762.54953.10972.53962.40611.7989

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 110.575 C1 C2 H7 112.236
C1 C2 H8 112.236 C2 C1 H3 109.116
C2 C1 H4 110.663 C2 C1 H5 110.663
H3 C1 H4 108.731 H3 C1 H5 108.731
H4 C1 H5 108.891 Cl6 C2 H7 105.662
Cl6 C2 H8 105.662 H7 C2 H8 110.064
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.526      
2 C -0.439      
3 H 0.190      
4 H 0.204      
5 H 0.204      
6 Cl -0.091      
7 H 0.228      
8 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.239 1.957 0.000 2.316
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.740 -0.347 0.000
y -0.347 -25.669 0.000
z 0.000 0.000 -26.255
Traceless
 xyz
x -0.778 -0.347 0.000
y -0.347 0.829 0.000
z 0.000 0.000 -0.051
Polar
3z2-r2-0.101
x2-y2-1.071
xy-0.347
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.870
(<r2>)1/2 9.048