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All results from a given calculation for C2Cl2 (dichloroacetylene)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Σg
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-994.658007
Energy at 298.15K-994.656921
Nuclear repulsion energy154.254246
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/6-311G*
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 2545 2301 0.00      
2 Σg 504 456 0.00      
3 Σu 1052 951 51.35      
4 Πg 457 414 0.00      
4 Πg 457 414 0.00      
5 Πu 200 181 1.39      
5 Πu 200 181 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 2707.9 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 2449.1 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 HF/6-311G*
B
0.04717

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.588
C2 0.000 0.000 -0.588
Cl3 0.000 0.000 2.234
Cl4 0.000 0.000 -2.234

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4
C11.17691.64572.8226
C21.17692.82261.6457
Cl31.64572.82264.4683
Cl42.82261.64574.4683

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 HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.076      
2 C 0.076      
3 Cl -0.076      
4 Cl -0.076      


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 -36.858 0.000 0.000
y 0.000 -36.858 0.000
z 0.000 0.000 -32.082
Traceless
 xyz
x -2.388 0.000 0.000
y 0.000 -2.388 0.000
z 0.000 0.000 4.776
Polar
3z2-r29.551
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


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