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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: mPW1PW91/6-31G**

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 mPW1PW91/6-31G**
 hartrees
Energy at 0K-536.898875
Energy at 298.15K-536.898388
HF Energy-536.898875
Nuclear repulsion energy74.399604
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 mPW1PW91/6-31G**
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 3522 3351 96.41      
2 Σ 2245 2137 35.09      
3 Σ 774 737 10.97      
4 Π 613 584 47.59      
4 Π 613 584 47.59      
5 Π 326 310 0.71      
5 Π 326 310 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 4209.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 4005.6 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 mPW1PW91/6-31G**
B
0.18914

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.817
C2 0.000 0.000 -0.613
Cl3 0.000 0.000 1.027
H4 0.000 0.000 -2.881

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20412.84401.0643
C21.20411.63992.2684
Cl32.84401.63993.9083
H41.06432.26843.9083

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 mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.271      
2 C -0.056      
3 Cl 0.126      
4 H 0.201      


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 -0.550 0.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.347 0.000 0.000
y 0.000 -24.347 0.000
z 0.000 0.000 -17.260
Traceless
 xyz
x -3.543 0.000 0.000
y 0.000 -3.543 0.000
z 0.000 0.000 7.087
Polar
3z2-r214.174
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.926 0.000 0.000
y 0.000 1.926 0.000
z 0.000 0.000 7.296


<r2> (average value of r2) Å2
<r2> 62.026
(<r2>)1/2 7.876