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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: G3

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 G3
 hartrees
Energy at 0K-536.730397
Energy at 298.15K-536.726044
HF Energy-535.707600
Nuclear repulsion energy74.631674
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 HF/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 3671 3459 83.85      
2 Σ 2412 2273 21.95      
3 Σ 799 753 7.64      
4 Π 796 750 47.91      
4 Π 796 750 47.91      
5 Π 393 370 4.05      
5 Π 393 370 4.05      

Unscaled Zero Point Vibrational Energy (zpe) 4629.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 4361.7 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=FULL/6-31G*
B
0.18729

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.828
C2 0.000 0.000 -0.612
Cl3 0.000 0.000 1.032
H4 0.000 0.000 -2.894

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21612.85981.0656
C21.21611.64372.2817
Cl32.85981.64373.9254
H41.06562.28173.9254

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