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All results from a given calculation for C2Cl2 (dichloroacetylene)

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Σg
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-996.547725
Energy at 298.15K-996.546020
HF Energy-996.547725
Nuclear repulsion energy153.325001
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 B97D3/6-311G**
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 2273 2241 0.00      
2 Σg 470 463 0.00      
3 Σu 980 966 78.49      
4 Πg 230 227 0.00      
5 Πg 230 227 0.00      
6 Πu 173 170 2.81      
7 Πu 173 170 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 2264.2 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 2231.8 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 B97D3/6-311G**
B
0.04656

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.605
C2 0.000 0.000 -0.605
Cl3 0.000 0.000 2.248
Cl4 0.000 0.000 -2.248

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4
C11.20951.64292.8524
C21.20952.85241.6429
Cl31.64292.85244.4953
Cl42.85241.64294.4953

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 B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.039      
2 C 0.039      
3 Cl -0.039      
4 Cl -0.039      


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 -36.235 0.000 0.000
y 0.000 -36.235 0.000
z 0.000 0.000 -30.412
Traceless
 xyz
x -2.911 0.000 0.000
y 0.000 -2.911 0.000
z 0.000 0.000 5.823
Polar
3z2-r211.646
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 2.628 0.000 0.000
y 0.000 2.628 0.000
z 0.000 0.000 12.342


<r2> (average value of r2) Å2
<r2> 197.575
(<r2>)1/2 14.056