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All results from a given calculation for HCCCl (Chloroacetylene)

using model chemistry: PBEPBE/STO-3G

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 PBEPBE/STO-3G
 hartrees
Energy at 0K-530.642014
Energy at 298.15K-530.641341
HF Energy-530.642014
Nuclear repulsion energy71.923760
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 PBEPBE/STO-3G
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 3611 3299 188.26      
2 Σ 2331 2130 1.74      
3 Σ 744 680 7.11      
4 Π 658 601 18.29      
4 Π 658 601 18.29      
5 Π 305 279 0.03      
5 Π 305 279 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 4305.5 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 3933.5 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 PBEPBE/STO-3G
B
0.17652

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.872
C2 0.000 0.000 -0.656
Cl3 0.000 0.000 1.066
H4 0.000 0.000 -2.959

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4
C11.21562.93771.0871
C21.21561.72212.3027
Cl32.93771.72214.0248
H41.08712.30274.0248

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 PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.107      
2 C -0.033      
3 Cl 0.005      
4 H 0.135      


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 -1.010 1.010
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.534 0.000 0.000
y 0.000 -22.534 0.000
z 0.000 0.000 -17.737
Traceless
 xyz
x -2.398 0.000 0.000
y 0.000 -2.398 0.000
z 0.000 0.000 4.797
Polar
3z2-r29.594
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 0.392 0.000 0.000
y 0.000 0.392 0.000
z 0.000 0.000 4.676


<r2> (average value of r2) Å2
<r2> 64.750
(<r2>)1/2 8.047