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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-1907.701739
Energy at 298.15K-1907.701495
Nuclear repulsion energy476.758409
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 1693 1634 0.00      
2 Ag 398 384 0.00      
3 Ag 218 210 0.00      
4 Au 96 93 0.00      
5 B1u 701 676 66.07      
6 B1u 281 271 0.02      
7 B2g 540 521 0.00      
8 B2u 810 781 192.32      
9 B2u 167 161 1.76      
10 B3g 898 867 0.00      
11 B3g 331 319 0.00      
12 B3u 273 264 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 3202.5 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 3090.1 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 B3LYP/3-21G
ABC
0.05289 0.04386 0.02398

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.661
C2 0.000 0.000 -0.661
Cl3 0.000 1.510 1.635
Cl4 0.000 -1.510 1.635
Cl5 0.000 -1.510 -1.635
Cl6 0.000 1.510 -1.635

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.32271.79621.79622.74802.7480
C21.32272.74802.74801.79621.7962
Cl31.79622.74803.01904.45033.2697
Cl41.79622.74803.01903.26974.4503
Cl52.74801.79624.45033.26973.0190
Cl62.74801.79623.26974.45033.0190

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.819 C1 C2 Cl6 122.819
C2 C1 Cl3 122.819 C2 C1 Cl4 122.819
Cl3 C1 Cl4 114.363 Cl5 C2 Cl6 114.363
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.430     0.023
2 C -0.430     0.023
3 Cl 0.215     -0.011
4 Cl 0.215     -0.011
5 Cl 0.215     -0.011
6 Cl 0.215     -0.011


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.668 0.000 0.000
y 0.000 -60.750 0.000
z 0.000 0.000 -61.762
Traceless
 xyz
x -1.412 0.000 0.000
y 0.000 1.465 0.000
z 0.000 0.000 -0.053
Polar
3z2-r2-0.106
x2-y2-1.918
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.497 0.000 0.000
y 0.000 11.408 0.000
z 0.000 0.000 10.900


<r2> (average value of r2) Å2
<r2> 380.496
(<r2>)1/2 19.506