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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: mPW1PW91/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-536.968368
Energy at 298.15K-536.968017
HF Energy-536.968368
Nuclear repulsion energy74.775956
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/aug-cc-pVTZ
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 3498 3351 101.31      
2 Σ 2220 2127 48.17      
3 Σ 774 742 10.37      
4 Π 657 629 45.87      
4 Π 657 629 45.87      
5 Π 360 345 5.48      
5 Π 360 345 5.48      

Unscaled Zero Point Vibrational Energy (zpe) 4262.4 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 4083.8 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/aug-cc-pVTZ
B
0.19108

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.807
C2 0.000 0.000 -0.610
Cl3 0.000 0.000 1.022
H4 0.000 0.000 -2.868

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.19682.82911.0611
C21.19681.63232.2579
Cl32.82911.63233.8902
H41.06112.25793.8902

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/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.821      
2 C 0.414      
3 Cl -0.095      
4 H 0.502      


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 -0.378 0.378
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.794 0.000 0.000
y 0.000 -24.794 0.000
z 0.000 0.000 -17.881
Traceless
 xyz
x -3.456 0.000 0.000
y 0.000 -3.456 0.000
z 0.000 0.000 6.913
Polar
3z2-r213.826
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 4.003 0.000 0.000
y 0.000 4.003 0.000
z 0.000 0.000 8.421


<r2> (average value of r2) Å2
<r2> 61.857
(<r2>)1/2 7.865