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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: B3PW91/6-31G*

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 B3PW91/6-31G*
 hartrees
Energy at 0K-536.827349
Energy at 298.15K-536.826794
HF Energy-536.827349
Nuclear repulsion energy74.276687
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 B3PW91/6-31G*
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 3507 3355 86.63      
2 Σ 2229 2132 35.44      
3 Σ 767 734 10.93      
4 Π 590 565 48.69      
4 Π 590 565 48.69      
5 Π 313 300 0.27      
5 Π 313 300 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 4154.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 3974.6 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 B3PW91/6-31G*
B
0.18852

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

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 -0.614
Cl3 0.000 0.000 1.029
H4 0.000 0.000 -2.887

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20622.84861.0667
C21.20621.64242.2729
Cl32.84861.64243.9153
H41.06672.27293.9153

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 B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.325      
2 C -0.030      
3 Cl 0.123      
4 H 0.233      


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 -0.545 0.545
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.346 0.000 0.000
y 0.000 -24.346 0.000
z 0.000 0.000 -17.226
Traceless
 xyz
x -3.560 0.000 0.000
y 0.000 -3.560 0.000
z 0.000 0.000 7.120
Polar
3z2-r214.240
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 1.921 0.000 0.000
y 0.000 1.921 0.000
z 0.000 0.000 7.316


<r2> (average value of r2) Å2
<r2> 62.178
(<r2>)1/2 7.885