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

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-1442.723295
Energy at 298.15K-1442.726925
Nuclear repulsion energy332.255331
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 mPW1PW91/STO-3G
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 3517 3091 5.75      
2 A 3426 3011 3.15      
3 A 3393 2982 3.79      
4 A 1602 1408 3.55      
5 A 1427 1254 2.59      
6 A 1364 1199 24.14      
7 A 1289 1133 17.30      
8 A 1241 1090 2.87      
9 A 1136 998 5.76      
10 A 1004 882 31.77      
11 A 895 786 12.82      
12 A 865 761 77.55      
13 A 740 651 19.64      
14 A 382 336 9.02      
15 A 338 297 2.50      
16 A 246 217 3.95      
17 A 170 150 5.84      
18 A 89 78 5.47      

Unscaled Zero Point Vibrational Energy (zpe) 11561.5 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 10161.4 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 mPW1PW91/STO-3G
ABC
0.11116 0.04679 0.03410

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.669 -0.860 0.419
C2 -0.422 -0.081 -0.366
Cl3 2.336 -0.327 -0.099
H4 0.570 -0.685 1.504
H5 0.576 -1.938 0.199
Cl6 -2.043 -0.867 -0.017
Cl7 -0.432 1.689 0.083
H8 -0.260 -0.140 -1.461

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.55311.82461.10321.10422.74692.79612.2173
C21.55312.78102.20112.18211.83531.82621.1084
Cl31.82462.78102.41162.40374.41263.42862.9375
H41.10322.20112.41161.80873.02862.94203.1269
H51.10422.18212.40371.80872.83803.76562.5861
Cl62.74691.83534.41263.02862.83803.02282.4068
Cl72.79611.82623.42862.94203.76563.02282.4000
H82.21731.10842.93753.12692.58612.40682.4000

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 108.040 C1 C2 Cl7 111.411
C1 C2 H8 111.758 C2 C1 Cl3 110.587
C2 C1 H4 110.781 C2 C1 H5 109.244
Cl3 C1 H4 108.377 Cl3 C1 H5 107.758
H4 C1 H5 110.040 Cl6 C2 Cl7 111.291
Cl6 C2 H8 107.095 Cl7 C2 H8 107.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 C 0.008      
3 Cl -0.126      
4 H 0.138      
5 H 0.135      
6 Cl -0.107      
7 Cl -0.096      
8 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.006 -1.690 -0.174 1.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.697 -0.709 0.841
y -0.709 1.317 -0.545
z 0.841 -0.545 4.380
Traceless
 xyz
x -8.546 -0.709 0.841
y -0.709 1.976 -0.545
z 0.841 -0.545 6.570
Polar
3z2-r213.140
x2-y2-7.014
xy-0.709
xz0.841
yz-0.545


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.057 1.031 -0.520
y 1.031 3.959 0.100
z -0.520 0.100 1.863


<r2> (average value of r2) Å2
<r2> 280.409
(<r2>)1/2 16.745