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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCSD/TZVP

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 CCSD/TZVP
 hartrees
Energy at 0K-536.180031
Energy at 298.15K-536.179176
HF Energy-535.757076
Nuclear repulsion energy73.938709
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 CCSD/TZVP
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 3514 3354 78.62      
2 Σ 2209 2108 28.29      
3 Σ 742 708 8.69      
4 Π 545 520 52.35      
4 Π 545 520 52.35      
5 Π 217 207 0.00      
5 Π 217 207 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 3994.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3812.2 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 CCSD/TZVP
B
0.18671

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.826
C2 0.000 0.000 -0.624
Cl3 0.000 0.000 1.035
H4 0.000 0.000 -2.888

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20282.86111.0617
C21.20281.65832.2645
Cl32.86111.65833.9228
H41.06172.26453.9228

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