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 CH3CHCl2 (Ethane, 1,1-dichloro-)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-998.499560
Energy at 298.15K-998.504168
Nuclear repulsion energy206.524088
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 PBEPBE/6-31G*
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' 3105 3061 7.35      
2 A' 3080 3036 1.26      
3 A' 3005 2962 5.43      
4 A' 1461 1440 7.91      
5 A' 1388 1368 11.42      
6 A' 1280 1262 15.83      
7 A' 1085 1070 5.63      
8 A' 973 959 17.85      
9 A' 631 622 13.95      
10 A' 396 391 5.83      
11 A' 268 264 1.20      
12 A" 3086 3042 7.08      
13 A" 1466 1445 2.09      
14 A" 1238 1220 41.33      
15 A" 1051 1036 45.43      
16 A" 653 643 135.49      
17 A" 315 311 1.24      
18 A" 272 268 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 12376.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 12199.7 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 PBEPBE/6-31G*
ABC
0.21204 0.10312 0.07349

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.211 0.504 0.000
C2 -0.974 1.451 0.000
H3 1.176 1.030 0.000
Cl4 0.211 -0.524 1.489
Cl5 0.211 -0.524 -1.489
H6 -1.920 0.888 0.000
H7 -0.936 2.090 0.898
H8 -0.936 2.090 -0.898

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 H6 H7 H8
C11.51671.09831.80961.80962.16552.15332.1533
C21.51672.19012.74262.74261.10081.10251.1025
H31.09832.19012.35842.35843.09872.52762.5276
Cl41.80962.74262.35842.97802.95862.91533.7209
Cl51.80962.74262.35842.97802.95863.72092.9153
H62.16551.10083.09872.95862.95861.79361.7936
H72.15331.10252.52762.91533.72091.79361.7953
H82.15331.10252.52763.72092.91531.79361.7953

picture of Ethane, 1,1-dichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.645 C1 C2 H7 109.581
C1 C2 H8 109.581 C2 C1 H3 112.781
C2 C1 Cl4 110.771 C2 C1 Cl5 110.771
H3 C1 Cl4 105.789 H3 C1 Cl5 105.789
Cl4 C1 Cl5 110.738 H6 C2 H7 108.992
H6 C2 H8 108.992 H7 C2 H8 109.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 C -0.468      
3 H 0.250      
4 Cl -0.011      
5 Cl -0.011      
6 H 0.205      
7 H 0.194      
8 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.292 2.212 0.000 2.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.178 0.034 0.000
y 0.034 -36.344 0.000
z 0.000 0.000 -40.398
Traceless
 xyz
x 1.193 0.034 0.000
y 0.034 2.444 0.000
z 0.000 0.000 -3.637
Polar
3z2-r2-7.274
x2-y2-0.834
xy0.034
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.776 -0.533 0.000
y -0.533 6.064 0.000
z 0.000 0.000 7.879


<r2> (average value of r2) Å2
<r2> 149.083
(<r2>)1/2 12.210