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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: TPSSh/3-21G*

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 TPSSh/3-21G*
 hartrees
Energy at 0K-534.407987
Energy at 298.15K-534.407736
HF Energy-534.407987
Nuclear repulsion energy74.215592
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 TPSSh/3-21G*
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 3496 3376 82.71      
2 Σ 2212 2136 28.28      
3 Σ 743 717 7.88      
4 Π 729 704 48.43      
4 Π 729 704 48.43      
5 Π 389 376 7.93      
5 Π 389 376 7.93      

Unscaled Zero Point Vibrational Energy (zpe) 4343.5 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 4194.5 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 TPSSh/3-21G*
B
0.18817

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.822
C2 0.000 0.000 -0.615
Cl3 0.000 0.000 1.030
H4 0.000 0.000 -2.884

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20772.85191.0623
C21.20771.64422.2700
Cl32.85191.64423.9141
H41.06232.27003.9141

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
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 C -0.164      
3 Cl 0.217      
4 H 0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.927 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.571 0.000 0.000
y 0.000 1.571 0.000
z 0.000 0.000 7.132


<r2> (average value of r2) Å2
<r2> 62.483
(<r2>)1/2 7.905