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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-991.295148
Energy at 298.15K-991.296874
HF Energy-991.019521
Nuclear repulsion energy168.569804
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 MP2/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3310 3159 0.00      
2 Ag 1652 1577 0.00      
3 Ag 1324 1263 0.00      
4 Ag 766 731 0.00      
5 Ag 322 307 0.00      
6 Au 973 928 99.44      
7 Au 204 195 1.26      
8 Bg 821 783 0.00      
9 Bu 3304 3154 8.79      
10 Bu 1250 1193 24.75      
11 Bu 719 687 82.78      
12 Bu 225 214 5.11      

Unscaled Zero Point Vibrational Energy (zpe) 7434.4 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 7096.1 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 MP2/3-21G
ABC
1.68912 0.04705 0.04577

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 0.000
C2 0.000 -0.662 0.000
H3 0.870 1.301 0.000
H4 -0.870 -1.301 0.000
Cl5 -1.598 1.578 0.000
Cl6 1.598 -1.578 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32471.07902.14721.84202.7522
C21.32472.14721.07902.75221.8420
H31.07902.14723.12962.48362.9697
H42.14721.07903.12962.96972.4836
Cl51.84202.75222.48362.96974.4922
Cl62.75221.84202.96972.48364.4922

picture of Ethene, 1,2-dichloro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 126.275 C1 C2 Cl6 119.821
C2 C1 H3 126.275 C2 C1 Cl5 119.821
H3 C1 Cl5 113.905 H4 C2 Cl6 113.905
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329     -0.125
2 C -0.329     -0.116
3 H 0.274     0.224
4 H 0.274     0.223
5 Cl 0.055     -0.102
6 Cl 0.055     -0.104


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 0.000 0.000
CHELPG        
AIM        
ESP -0.009 -0.011 0.000 0.014


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.487 4.242 0.000
y 4.242 -38.789 0.000
z 0.000 0.000 -39.876
Traceless
 xyz
x -0.155 4.242 0.000
y 4.242 0.893 0.000
z 0.000 0.000 -0.738
Polar
3z2-r2-1.476
x2-y2-0.698
xy4.242
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.200 -3.164 0.000
y -3.164 6.868 0.000
z 0.000 0.000 1.607


<r2> (average value of r2) Å2
<r2> 206.497
(<r2>)1/2 14.370