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All results from a given calculation for C2H2F2 (Ethene, 1,2-difluoro-, (E)-)

using model chemistry: LSDA/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-275.693430
Energy at 298.15K-275.695647
Nuclear repulsion energy111.356351
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 LSDA/6-31G*
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 3153 3094 0.00      
2 Ag 1764 1731 0.00      
3 Ag 1261 1237 0.00      
4 Ag 1189 1167 0.00      
5 Ag 554 543 0.00      
6 Au 879 862 59.24      
7 Au 338 332 3.22      
8 Bg 778 764 0.00      
9 Bu 3146 3087 15.62      
10 Bu 1291 1267 129.03      
11 Bu 1217 1194 144.46      
12 Bu 301 296 9.51      

Unscaled Zero Point Vibrational Energy (zpe) 7935.3 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 7786.9 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 LSDA/6-31G*
ABC
1.92388 0.13478 0.12595

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.329 0.577 0.000
C2 0.329 -0.577 0.000
F3 0.329 1.733 0.000
F4 -0.329 -1.733 0.000
H5 -1.421 0.663 0.000
H6 1.421 -0.663 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32901.33042.31071.09572.1456
C21.32902.31071.33042.14561.0957
F31.33042.31073.52872.05172.6339
F42.31071.33043.52872.63392.0517
H51.09572.14562.05172.63393.1372
H62.14561.09572.63392.05173.1372

picture of Ethene, 1,2-difluoro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 120.655 C1 C2 H6 124.194
C2 C1 F3 120.655 C2 C1 H5 124.194
F3 C1 H5 115.151 F4 C2 H6 115.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.037      
2 C 0.037      
3 F -0.209      
4 F -0.209      
5 H 0.171      
6 H 0.171      


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        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.695 -1.867 0.000
y -1.867 -23.958 0.000
z 0.000 0.000 -21.973
Traceless
 xyz
x 4.270 -1.867 0.000
y -1.867 -3.624 0.000
z 0.000 0.000 -0.646
Polar
3z2-r2-1.292
x2-y25.263
xy-1.867
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.427 -0.488 0.000
y -0.488 4.522 0.000
z 0.000 0.000 1.675


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000