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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCSD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-536.211866
Energy at 298.15K-536.211408
Nuclear repulsion energy 
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/6-31G(2df,p)
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 3536 3343 88.83      
2 Σ 2227 2106 17.19      
3 Σ 760 719 7.41      
4 Π 627 593 41.17      
4 Π 627 593 41.17      
5 Π 332 314 1.27      
5 Π 332 314 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 4220.5 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 3990.5 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/6-31G(2df,p)
B
0.18831

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.820
C2 0.000 0.000 -0.617
Cl3 0.000 0.000 1.030
H4 0.000 0.000 -2.882

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20292.85001.0613
C21.20291.64712.2643
Cl32.85001.64713.9113
H41.06132.26433.9113

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