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All results from a given calculation for CHClCHCl (Ethene, 1,2-dichloro-, (Z)-)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-991.240804
Energy at 298.15K-991.243116
Nuclear repulsion energy185.144552
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 HF/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 A1 3429 3095 0.54      
2 A1 1822 1645 22.58      
3 A1 1367 1234 0.00      
4 A1 736 664 24.37      
5 A1 189 170 0.38      
6 A2 1125 1015 0.00      
7 A2 470 424 0.00      
8 B1 842 760 84.60      
9 B2 3403 3071 14.59      
10 B2 1481 1337 26.98      
11 B2 900 813 77.33      
12 B2 621 561 9.84      

Unscaled Zero Point Vibrational Energy (zpe) 8192.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 7394.2 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 HF/3-21G*
ABC
0.38923 0.08301 0.06842

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.654 0.962
C2 0.000 -0.654 0.962
H3 0.000 1.200 1.880
H4 0.000 -1.200 1.880
Cl5 0.000 1.648 -0.450
Cl6 0.000 -1.648 -0.450

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.30871.06822.06951.72692.7009
C21.30872.06951.06822.70091.7269
H31.06822.06952.40072.37333.6802
H42.06951.06822.40073.68022.3733
Cl51.72692.70092.37333.68023.2956
Cl62.70091.72693.68022.37333.2956

picture of Ethene, 1,2-dichloro-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.740 C1 C2 Cl6 125.119
C2 C1 H3 120.740 C2 C1 Cl5 125.119
H3 C1 Cl5 114.141 H4 C2 Cl6 114.141
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.326 -0.092    
2 C -0.326 -0.092    
3 H 0.294 0.168    
4 H 0.294 0.168    
5 Cl 0.032 -0.076    
6 Cl 0.032 -0.076    


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 2.387 2.387
CHELPG 0.000 0.000 2.522 2.522
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.446 0.000 0.000
y 0.000 -38.326 0.000
z 0.000 0.000 -32.728
Traceless
 xyz
x -3.919 0.000 0.000
y 0.000 -2.238 0.000
z 0.000 0.000 6.158
Polar
3z2-r212.315
x2-y2-1.121
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.246 0.000 0.000
y 0.000 8.054 0.000
z 0.000 0.000 5.597


<r2> (average value of r2) Å2
<r2> 148.420
(<r2>)1/2 12.183