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All results from a given calculation for HCCCl (Chloroacetylene)

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

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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-536.903908
Energy at 298.15K-536.903442
HF Energy-536.903908
Nuclear repulsion energy74.392827
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 mPW1PW91/6-31+G**
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 3515 3346 102.83      
2 Σ 2230 2122 51.72      
3 Σ 773 736 12.11      
4 Π 619 589 62.29      
4 Π 619 589 62.29      
5 Π 331 315 2.35      
5 Π 331 315 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 4209.0 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 4006.1 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 mPW1PW91/6-31+G**
B
0.18911

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

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 -0.612
Cl3 0.000 0.000 1.027
H4 0.000 0.000 -2.883

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20602.84461.0649
C21.20601.63852.2710
Cl32.84461.63853.9095
H41.06492.27103.9095

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 mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.696      
2 C 0.053      
3 Cl 0.407      
4 H 0.235      


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 -0.449 0.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.945 0.000 0.000
y 0.000 -24.945 0.000
z 0.000 0.000 -17.709
Traceless
 xyz
x -3.618 0.000 0.000
y 0.000 -3.618 0.000
z 0.000 0.000 7.236
Polar
3z2-r214.471
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 2.628 0.000 0.000
y 0.000 2.628 0.000
z 0.000 0.000 8.025


<r2> (average value of r2) Å2
<r2> 62.379
(<r2>)1/2 7.898