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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CISD/6-311G*

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 CISD/6-311G*
 hartrees
Energy at 0K-536.120198
Energy at 298.15K-536.119673
HF Energy-535.746643
Nuclear repulsion energy74.391819
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 CISD/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 Σ 3545 3280 79.86      
2 Σ 2268 2099 28.03      
3 Σ 778 720 9.86      
4 Π 619 573 51.64      
4 Π 619 573 51.64      
5 Π 305 282 1.24      
5 Π 305 282 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 4219.0 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 3903.8 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 CISD/6-311G*
B
0.18906

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.815
C2 0.000 0.000 -0.618
Cl3 0.000 0.000 1.028
H4 0.000 0.000 -2.877

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.19752.84321.0614
C21.19751.64572.2589
Cl32.84321.64573.9046
H41.06142.25893.9046

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