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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP2/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 MP2/cc-pVDZ
 hartrees
Energy at 0K-536.124546
Energy at 298.15K-536.124005
HF Energy-535.732126
Nuclear repulsion energy73.458116
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 MP2/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 3510 3344 91.93      
2 Σ 2120 2019 29.97      
3 Σ 765 729 9.89      
4 Π 594 566 39.87      
4 Π 594 566 39.87      
5 Π 310 295 1.00      
5 Π 310 295 1.00      

Unscaled Zero Point Vibrational Energy (zpe) 4101.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 3906.4 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 MP2/cc-pVDZ
B
0.18436

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.844
C2 0.000 0.000 -0.615
Cl3 0.000 0.000 1.039
H4 0.000 0.000 -2.918

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.22922.88331.0744
C21.22921.65402.3036
Cl32.88331.65403.9576
H41.07442.30363.9576

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