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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: B2PLYP/3-21G*

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 B2PLYP/3-21G*
 hartrees
Energy at 0K-534.145805
Energy at 298.15K-534.145490
HF Energy-534.038468
Nuclear repulsion energy74.029508
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 B2PLYP/3-21G*
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 3521 3521 82.54      
2 Σ 2196 2196 19.15      
3 Σ 738 738 6.53      
4 Π 707 707 46.26      
4 Π 707 707 46.26      
5 Π 368 368 5.78      
5 Π 368 368 5.78      

Unscaled Zero Point Vibrational Energy (zpe) 4302.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4302.0 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 B2PLYP/3-21G*
B
0.18718

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.827
C2 0.000 0.000 -0.618
Cl3 0.000 0.000 1.033
H4 0.000 0.000 -2.886

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.20872.85941.0597
C21.20871.65062.2684
Cl32.85941.65063.9190
H41.05972.26843.9190

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 B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.316      
2 C -0.145      
3 Cl 0.190      
4 H 0.271      


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 -0.693 0.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.868 0.000 0.000
y 0.000 -24.868 0.000
z 0.000 0.000 -17.757
Traceless
 xyz
x -3.556 0.000 0.000
y 0.000 -3.556 0.000
z 0.000 0.000 7.111
Polar
3z2-r214.222
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 1.544 0.000 0.000
y 0.000 1.544 0.000
z 0.000 0.000 6.840


<r2> (average value of r2) Å2
<r2> 62.824
(<r2>)1/2 7.926