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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-91.109702
Energy at 298.15K-91.109105
HF Energy-90.887307
Nuclear repulsion energy40.963494
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/LANL2DZ
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 3484 3355 53.73      
2 Σ 2056 1980 17.46      
3 Σ 660 636 3.98      
4 Π 621 598 58.29      
4 Π 621 598 58.29      
5 Π 299 288 2.90      
5 Π 299 288 2.90      

Unscaled Zero Point Vibrational Energy (zpe) 4020.1 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 3871.7 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/LANL2DZ
B
0.17366

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.894
C2 0.000 0.000 -0.653
Cl3 0.000 0.000 1.073
H4 0.000 0.000 -2.965

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.24142.96781.0709
C21.24141.72642.3123
Cl32.96781.72644.0387
H41.07092.31234.0387

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