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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-536.785453
Energy at 298.15K-536.785076
HF Energy-536.785453
Nuclear repulsion energy72.609518
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 3525 3375 87.10      
2 Σ 2229 2134 23.13      
3 Σ 706 677 6.61      
4 Π 714 684 51.53      
4 Π 714 684 51.53      
5 Π 342 327 5.20      
5 Π 342 327 5.20      

Unscaled Zero Point Vibrational Energy (zpe) 4286.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 4104.7 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
0.17982

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 -1.857
C2 0.000 0.000 -0.648
Cl3 0.000 0.000 1.056
H4 0.000 0.000 -2.921

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20882.91271.0645
C21.20881.70392.2733
Cl32.91271.70393.9772
H41.06452.27333.9772

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 -0.420      
2 C -0.189      
3 Cl 0.344      
4 H 0.264      


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 -0.888 0.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.551 0.000 0.000
y 0.000 -24.551 0.000
z 0.000 0.000 -17.668
Traceless
 xyz
x -3.442 0.000 0.000
y 0.000 -3.442 0.000
z 0.000 0.000 6.883
Polar
3z2-r213.766
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 1.529 0.000 0.000
y 0.000 1.529 0.000
z 0.000 0.000 7.146


<r2> (average value of r2) Å2
<r2> 64.595
(<r2>)1/2 8.037