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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CBS-Q

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 CBS-Q
 hartrees
Energy at 0K-536.341371
Energy at 298.15K-536.337031
HF Energy-535.706367
Nuclear repulsion energy74.513382
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 CBS-Q
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 3659 3659 88.20      
2 Σ 2408 2408 23.33      
3 Σ 796 796 8.20      
4 Π 764 764 44.82      
4 Π 764 764 44.82      
5 Π 388 388 3.36      
5 Π 388 388 3.36      

Unscaled Zero Point Vibrational Energy (zpe) 4582.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4582.2 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 CBS-Q
B
0.18605

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.805
C2 0.000 0.000 -0.624
Cl3 0.000 0.000 1.026
H4 0.000 0.000 -2.863

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.18052.83061.0582
C21.18051.65012.2387
Cl32.83061.65013.8888
H41.05822.23873.8888

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