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All results from a given calculation for C2Cl2 (dichloroacetylene)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Σg
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-996.610267
Energy at 298.15K-996.608935
Nuclear repulsion energy153.757869
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/aug-cc-pVTZ
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 2319 2243 0.00      
2 Σg 476 461 0.00      
3 Σu 991 959 59.40      
4 Πg 371 359 0.00      
4 Πg 371 359 0.00      
5 Πu 180 174 2.08      
5 Πu 180 174 2.08      

Unscaled Zero Point Vibrational Energy (zpe) 2443.4 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 2364.0 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/aug-cc-pVTZ
B
0.04683

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.599
C2 0.000 0.000 -0.599
Cl3 0.000 0.000 2.241
Cl4 0.000 0.000 -2.241

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4
C11.19841.64212.8405
C21.19842.84051.6421
Cl31.64212.84054.4826
Cl42.84051.64214.4826

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 B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.097      
2 C 0.097      
3 Cl -0.097      
4 Cl -0.097      


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 -36.225 0.000 0.000
y 0.000 -36.225 0.000
z 0.000 0.000 -31.181
Traceless
 xyz
x -2.522 0.000 0.000
y 0.000 -2.522 0.000
z 0.000 0.000 5.044
Polar
3z2-r210.088
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 5.279 0.000 0.000
y 0.000 5.279 0.000
z 0.000 0.000 13.184


<r2> (average value of r2) Å2
<r2> 196.681
(<r2>)1/2 14.024