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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-536.104119
Energy at 298.15K-536.103345
HF Energy-535.706106
Nuclear repulsion energy73.931760
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 CCD/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 3509 3321 71.63      
2 Σ 2239 2119 18.30      
3 Σ 760 719 8.00      
4 Π 560 530 47.15      
5 Π 560 530 47.15      
6 Π 242 229 0.07      
7 Π 242 229 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 4056.3 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 3839.3 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 CCD/6-31G*
B
0.18674

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.827
C2 0.000 0.000 -0.620
Cl3 0.000 0.000 1.034
H4 0.000 0.000 -2.895

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20732.86061.0682
C21.20731.65342.2755
Cl32.86061.65343.9288
H41.06822.27553.9288

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