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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: QCISD/6-31G**

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 QCISD/6-31G**
 hartrees
Energy at 0K-536.116713
Energy at 298.15K-536.115960
HF Energy-535.707928
Nuclear repulsion energy73.855398
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 QCISD/6-31G**
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 3535 3328 72.44      
2 Σ 2217 2087 19.17      
3 Σ 757 712 7.71      
4 Π 565 532 42.82      
4 Π 565 532 42.82      
5 Π 246 231 0.01      
5 Π 246 231 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 4064.7 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 3826.5 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 QCISD/6-31G**
B
0.18630

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.831
C2 0.000 0.000 -0.620
Cl3 0.000 0.000 1.035
H4 0.000 0.000 -2.893

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21082.86581.0627
C21.21081.65502.2735
Cl32.86581.65503.9285
H41.06272.27353.9285

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