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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: QCISD(T)/aug-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 QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-536.184988
Energy at 298.15K-536.184156
HF Energy-535.736080
Nuclear repulsion energy73.056109
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 QCISD(T)/aug-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 3455 3379        
2 Σ 2125 2078        
3 Σ 735 719        
4 Π 514 502        
4 Π 514 502        
5 Π 240 235        
5 Π 240 235        

Unscaled Zero Point Vibrational Energy (zpe) 3911.3 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 3824.5 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 QCISD(T)/aug-cc-pVDZ
B
0.18231

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.852
C2 0.000 0.000 -0.624
Cl3 0.000 0.000 1.046
H4 0.000 0.000 -2.928

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.22842.89791.0763
C21.22841.66952.3047
Cl32.89791.66953.9742
H41.07632.30473.9742

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