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

using model chemistry: HF/CEP-121G*

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-121G*
 hartrees
Energy at 0K-56.784562
Energy at 298.15K-56.788666
Nuclear repulsion energy91.094425
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-121G*
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 3375 3049 5.71      
2 A 3362 3037 0.91      
3 A 3293 2975 11.57      
4 A 1611 1455 4.38      
5 A 1487 1343 11.97      
6 A 1425 1287 33.37      
7 A 1366 1234 41.06      
8 A 1291 1166 6.60      
9 A 1150 1039 2.11      
10 A 1033 933 31.62      
11 A 867 783 36.01      
12 A 808 730 149.66      
13 A 737 666 35.94      
14 A 412 373 8.78      
15 A 357 323 1.42      
16 A 274 247 1.64      
17 A 194 175 5.11      
18 A 114 103 4.48      

Unscaled Zero Point Vibrational Energy (zpe) 11577.0 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 10458.6 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 HF/CEP-121G*
ABC
0.11602 0.04836 0.03534

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.679 -0.822 0.414
C2 -0.411 -0.079 -0.358
Cl3 2.313 -0.289 -0.098
H4 0.585 -0.649 1.475
H5 0.608 -1.877 0.200
Cl6 -1.975 -0.882 -0.018
Cl7 -0.488 1.645 0.081
H8 -0.253 -0.132 -1.421

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.52821.79301.07881.07922.68992.74922.1704
C21.52822.74392.16252.14101.79141.78091.0760
Cl31.79302.74392.36362.34884.32973.40782.8909
H41.07882.16252.36361.77022.97282.89103.0586
H51.07922.14102.34881.77022.77723.69102.5326
Cl62.68991.79144.32972.97282.77722.93452.3451
Cl72.74921.78093.40782.89103.69102.93452.3391
H82.17041.07602.89093.05862.53262.34512.3391

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 107.985 C1 C2 Cl7 112.138
C1 C2 H8 111.730 C2 C1 Cl3 111.161
C2 C1 H4 110.913 C2 C1 H5 109.184
Cl3 C1 H4 108.192 Cl3 C1 H5 107.090
H4 C1 H5 110.227 Cl6 C2 Cl7 110.461
Cl6 C2 H8 107.086 Cl7 C2 H8 107.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.266      
2 C -0.059      
3 Cl -0.150      
4 H 0.226      
5 H 0.225      
6 Cl -0.118      
7 Cl -0.103      
8 H 0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.092 -1.477 -0.118 1.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -54.871 -0.249 0.575
y -0.249 -48.607 -0.445
z 0.575 -0.445 -46.681
Traceless
 xyz
x -7.227 -0.249 0.575
y -0.249 2.169 -0.445
z 0.575 -0.445 5.058
Polar
3z2-r210.117
x2-y2-6.264
xy-0.249
xz0.575
yz-0.445


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.644 0.942 -0.439
y 0.942 8.057 0.015
z -0.439 0.015 5.608


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