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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-536.141709
Energy at 298.15K-536.141261
HF Energy-535.733639
Nuclear repulsion energy73.464727
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/cc-pVDZ
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 3497 3346 83.33      
2 Σ 2209 2113 24.58      
3 Σ 759 726 8.66      
4 Π 640 612 39.01      
4 Π 640 612 39.01      
5 Π 328 314 1.94      
5 Π 328 314 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 4200.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 4018.4 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/cc-pVDZ
B
0.18440

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.840
C2 0.000 0.000 -0.622
Cl3 0.000 0.000 1.040
H4 0.000 0.000 -2.916

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21822.88021.0760
C21.21821.66202.2942
Cl32.88021.66203.9562
H41.07602.29423.9562

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