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All results from a given calculation for CH2ClCHCl2 (1,1,2-trichloroethane)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-56.678164
Energy at 298.15K-56.682135
Nuclear repulsion energy89.150424
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/CEP-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 3434 3096 3.94      
2 A 3418 3081 1.07      
3 A 3337 3008 11.73      
4 A 1613 1454 6.56      
5 A 1476 1330 9.04      
6 A 1419 1279 37.79      
7 A 1353 1219 42.47      
8 A 1285 1159 3.67      
9 A 1167 1052 1.90      
10 A 1038 936 30.26      
11 A 810 730 37.48      
12 A 744 671 155.92      
13 A 691 623 47.64      
14 A 403 363 10.84      
15 A 340 307 1.61      
16 A 262 236 2.71      
17 A 189 171 7.93      
18 A 103 93 6.91      

Unscaled Zero Point Vibrational Energy (zpe) 11541.1 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 10403.2 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 HF/CEP-31G
ABC
0.10979 0.04614 0.03365

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.675 -0.823 0.450
C2 -0.400 -0.088 -0.356
Cl3 2.368 -0.307 -0.107
H4 0.609 -0.606 1.506
H5 0.614 -1.886 0.268
Cl6 -2.026 -0.909 -0.026
Cl7 -0.497 1.693 0.079
H8 -0.239 -0.144 -1.419

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.53111.85551.07981.08022.74372.80062.1888
C21.53112.78752.17952.15591.85081.83651.0771
Cl31.85552.78752.40542.38964.43533.49952.9227
H41.07982.17952.40541.78093.06252.92283.0801
H51.08022.15592.38961.78092.82973.75242.5706
Cl62.74371.85084.43533.06252.82973.01972.3915
Cl72.80061.83653.49952.92283.75243.01972.3850
H82.18881.07712.92273.08012.57062.39152.3850

picture of 1,1,2-trichloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 108.070 C1 C2 Cl7 112.212
C1 C2 H8 112.946 C2 C1 Cl3 110.424
C2 C1 H4 112.015 C2 C1 H5 110.098
Cl3 C1 H4 107.084 Cl3 C1 H5 105.935
H4 C1 H5 111.071 Cl6 C2 Cl7 109.959
Cl6 C2 H8 106.521 Cl7 C2 H8 106.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.224      
2 C -0.349      
3 Cl -0.079      
4 H 0.212      
5 H 0.201      
6 Cl -0.021      
7 Cl 0.001      
8 H 0.259      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.062 -1.881 -0.024 1.883
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.963 -0.700 0.855
y -0.700 -50.300 -0.591
z 0.855 -0.591 -46.775
Traceless
 xyz
x -10.425 -0.700 0.855
y -0.700 2.569 -0.591
z 0.855 -0.591 7.857
Polar
3z2-r215.714
x2-y2-8.663
xy-0.700
xz0.855
yz-0.591


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.293 1.656 -0.920
y 1.656 7.159 0.039
z -0.920 0.039 3.638


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000