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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: CCSD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-536.285490
Energy at 298.15K-536.285093
HF Energy-535.774490
Nuclear repulsion energy74.240857
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/cc-pVTZ
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 3501 3295 84.64      
2 Σ 2205 2075 27.53      
3 Σ 758 713 8.00      
4 Π 648 610 45.41      
4 Π 648 610 45.41      
5 Π 346 325 3.13      
5 Π 346 325 3.13      

Unscaled Zero Point Vibrational Energy (zpe) 4225.3 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 3976.9 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/cc-pVTZ
B
0.18828

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.820
C2 0.000 0.000 -0.618
Cl3 0.000 0.000 1.030
H4 0.000 0.000 -2.880

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20182.84981.0603
C21.20181.64802.2621
Cl32.84981.64803.9101
H41.06032.26213.9101

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