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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-997.117543
Energy at 298.15K-997.122452
HF Energy-997.117543
Nuclear repulsion energy209.727187
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 HF/Def2TZVPP
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' 3316 3005 7.29      
2 A' 3266 2960 8.14      
3 A' 3184 2886 12.16      
4 A' 1602 1452 7.30      
5 A' 1544 1400 4.47      
6 A' 1431 1297 11.90      
7 A' 1184 1073 1.85      
8 A' 1063 963 13.26      
9 A' 697 632 16.08      
10 A' 434 393 4.54      
11 A' 297 269 1.12      
12 A" 3254 2950 15.39      
13 A" 1605 1455 1.10      
14 A" 1379 1250 48.11      
15 A" 1171 1062 38.16      
16 A" 773 700 123.26      
17 A" 340 308 0.84      
18 A" 285 258 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13411.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 12155.9 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 HF/Def2TZVPP
ABC
0.21529 0.10735 0.07588

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.210 0.497 0.000
C2 -0.967 1.446 0.000
H3 1.149 1.015 0.000
Cl4 0.210 -0.521 1.457
Cl5 0.210 -0.521 -1.457
H6 -1.896 0.897 0.000
H7 -0.927 2.071 0.881
H8 -0.927 2.071 -0.881

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 H6 H7 H8
C11.51131.07211.77751.77752.14392.13202.1320
C21.51132.15852.71562.71561.07971.08111.0811
H31.07212.15852.31602.31603.04722.48952.4895
Cl41.77752.71562.31602.91412.92732.88833.6710
Cl51.77752.71562.31602.91412.92733.67102.8883
H62.14391.07973.04722.92732.92731.75941.7594
H72.13201.08112.48952.88833.67101.75941.7618
H82.13201.08112.48953.67102.88831.75941.7618

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 110.568 C1 C2 H7 109.532
C1 C2 H8 109.532 C2 C1 H3 112.226
C2 C1 Cl4 111.064 C2 C1 Cl5 111.064
H3 C1 Cl4 106.071 H3 C1 Cl5 106.071
Cl4 C1 Cl5 110.117 H6 C2 H7 109.023
H6 C2 H8 109.023 H7 C2 H8 109.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.152      
2 C -0.169      
3 H 0.079      
4 Cl -0.140      
5 Cl -0.140      
6 H 0.078      
7 H 0.070      
8 H 0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.278 2.234 0.000 2.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.610 0.162 0.000
y 0.162 -36.804 0.000
z 0.000 0.000 -41.009
Traceless
 xyz
x 1.297 0.162 0.000
y 0.162 2.505 0.000
z 0.000 0.000 -3.802
Polar
3z2-r2-7.604
x2-y2-0.806
xy0.162
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.688 -0.470 0.000
y -0.470 6.777 0.000
z 0.000 0.000 8.262


<r2> (average value of r2) Å2
<r2> 145.549
(<r2>)1/2 12.064