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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: MP2=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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-536.224428
Energy at 298.15K-536.223938
HF Energy-535.720549
Nuclear repulsion energy74.585770
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=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 3557 3343 99.75      
2 Σ 2155 2025 21.50      
3 Σ 779 732 8.69      
4 Π 587 552 42.14      
5 Π 587 552 42.14      
6 Π 335 315 0.67      
7 Π 335 315 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 4168.0 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 3917.5 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 MP2=FULL/6-31G(2df,p)
B
0.19008

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.818
C2 0.000 0.000 -0.608
Cl3 0.000 0.000 1.025
H4 0.000 0.000 -2.876

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21022.84321.0585
C21.21021.63302.2687
Cl32.84321.63303.9017
H41.05852.26873.9017

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