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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-1895.947313
Energy at 298.15K-1895.946861
Nuclear repulsion energy475.185448
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/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 Ag 1721 1536 0.00      
2 Ag 451 403 0.00      
3 Ag 214 191 0.00      
4 Au 97 87 0.00      
5 B1u 799 713 73.41      
6 B1u 290 258 2.22      
7 B2g 482 430 0.00      
8 B2u 989 882 153.82      
9 B2u 155 138 1.69      
10 B3g 1076 960 0.00      
11 B3g 340 303 0.00      
12 B3u 278 248 3.03      

Unscaled Zero Point Vibrational Energy (zpe) 3445.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 3074.6 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 B3LYP/STO-3G
ABC
0.05224 0.04383 0.02383

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
C2 0.000 0.000 -0.680
Cl3 0.000 1.519 1.634
Cl4 0.000 -1.519 1.634
Cl5 0.000 -1.519 -1.634
Cl6 0.000 1.519 -1.634

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.36091.79351.79352.76852.7685
C21.36092.76852.76851.79351.7935
Cl31.79352.76853.03784.46213.2683
Cl41.79352.76853.03783.26834.4621
Cl52.76851.79354.46213.26833.0378
Cl62.76851.79353.26834.46213.0378

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.123 C1 C2 Cl6 122.123
C2 C1 Cl3 122.123 C2 C1 Cl4 122.123
Cl3 C1 Cl4 115.753 Cl5 C2 Cl6 115.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 C 0.048      
3 Cl -0.024      
4 Cl -0.024      
5 Cl -0.024      
6 Cl -0.024      


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        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.688 0.000 0.000
y 0.000 -59.147 0.000
z 0.000 0.000 -59.366
Traceless
 xyz
x 2.568 0.000 0.000
y 0.000 -1.120 0.000
z 0.000 0.000 -1.448
Polar
3z2-r2-2.896
x2-y22.458
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.650 0.000 0.000
y 0.000 7.360 0.000
z 0.000 0.000 7.016


<r2> (average value of r2) Å2
<r2> 380.503
(<r2>)1/2 19.506