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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP2=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-535.884730
Energy at 298.15K-535.884004
HF Energy-535.648193
Nuclear repulsion energy71.300175
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 MP2=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3495 3321 61.74      
2 Σ 2101 1996 8.35      
3 Σ 665 632 2.88      
4 Π 601 571 48.38      
4 Π 601 571 48.38      
5 Π 254 241 1.26      
5 Π 254 241 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 3985.1 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 3786.2 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 MP2=FULL/6-31G
B
0.17324

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.892
C2 0.000 0.000 -0.664
Cl3 0.000 0.000 1.076
H4 0.000 0.000 -2.960

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.22842.96821.0684
C21.22841.73982.2968
Cl32.96821.73984.0366
H41.06842.29684.0366

picture of Chloroacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl3 180.000 C2 C1 H4 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability