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All results from a given calculation for C2Cl2 (dichloroacetylene)

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Σg
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-996.438083
Energy at 298.15K-996.436607
HF Energy-996.438083
Nuclear repulsion energy153.359556
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 wB97X-D/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2378 2264 0.00      
2 Σg 481 458 0.00      
3 Σu 999 951 65.27      
4 Πg 317 302 0.00      
4 Πg 317 302 0.00      
5 Πu 174 165 1.91      
5 Πu 174 165 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 2419.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 2303.9 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 wB97X-D/6-31+G**
B
0.04659

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.602
C2 0.000 0.000 -0.602
Cl3 0.000 0.000 2.249
Cl4 0.000 0.000 -2.249

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4
C11.20371.64692.8506
C21.20372.85061.6469
Cl31.64692.85064.4975
Cl42.85061.64694.4975

picture of dichloroacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 180.000 C2 C1 Cl3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 C -0.354      
3 Cl 0.354      
4 Cl 0.354      


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 -36.100 0.000 0.000
y 0.000 -36.100 0.000
z 0.000 0.000 -30.962
Traceless
 xyz
x -2.569 0.000 0.000
y 0.000 -2.569 0.000
z 0.000 0.000 5.138
Polar
3z2-r210.276
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.371 0.000 0.000
y 0.000 3.371 0.000
z 0.000 0.000 11.936


<r2> (average value of r2) Å2
<r2> 197.503
(<r2>)1/2 14.054