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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCSD=FULL/6-31G(2df,p)

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 CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-536.244677
Energy at 298.15K-536.244263
HF Energy-535.721765
Nuclear repulsion energy74.515251
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 CCSD=FULL/6-31G(2df,p)
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 3549 3342 88.97      
2 Σ 2237 2106 18.08      
3 Σ 770 725 7.49      
4 Π 634 597 40.81      
4 Π 634 597 40.81      
5 Π 347 326 1.68      
5 Π 347 326 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 4258.8 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 4010.0 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 CCSD=FULL/6-31G(2df,p)
B
0.18971

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.814
C2 0.000 0.000 -0.615
Cl3 0.000 0.000 1.026
H4 0.000 0.000 -2.874

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.19982.84071.0596
C21.19981.64092.2594
Cl32.84071.64093.9003
H41.05962.25943.9003

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