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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP3/6-31G*

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 MP3/6-31G*
 hartrees
Energy at 0K-536.101636
Energy at 298.15K-536.100876
HF Energy-535.706490
Nuclear repulsion energy74.092212
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 MP3/6-31G*
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 3540 3322 80.02      
2 Σ 2274 2135 22.04      
3 Σ 769 722 8.75      
4 Π 563 528 49.22      
4 Π 563 528 49.22      
5 Π 245 230 0.11      
5 Π 245 230 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 4099.2 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 3847.5 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 MP3/6-31G*
B
0.18755

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.823
C2 0.000 0.000 -0.619
Cl3 0.000 0.000 1.032
H4 0.000 0.000 -2.889

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20412.85511.0657
C21.20411.65102.2698
Cl32.85511.65103.9208
H41.06572.26983.9208

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