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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-536.266200
Energy at 298.15K-536.265734
HF Energy-535.773185
Nuclear repulsion energy74.263621
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/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 Σ 3506 3329 91.92      
2 Σ 2118 2011 32.75      
3 Σ 765 726 9.32      
4 Π 606 575 46.70      
4 Π 606 575 46.70      
5 Π 335 318 1.95      
5 Π 335 318 1.95      

Unscaled Zero Point Vibrational Energy (zpe) 4135.2 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 3926.3 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/cc-pVTZ
B
0.18841

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.823
C2 0.000 0.000 -0.610
Cl3 0.000 0.000 1.028
H4 0.000 0.000 -2.884

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21282.85161.0605
C21.21281.63882.2733
Cl32.85161.63883.9120
H41.06052.27333.9120

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