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

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-273.153273
Energy at 298.15K-273.155465
Nuclear repulsion energy110.738913
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 B1B95/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 A1 3414 3015 0.63      
2 A1 1858 1641 14.26      
3 A1 1346 1189 11.53      
4 A1 1087 960 6.94      
5 A1 225 199 0.53      
6 A2 896 791 0.00      
7 A2 482 426 0.00      
8 B1 787 695 15.63      
9 B2 3390 2994 19.28      
10 B2 1560 1377 28.08      
11 B2 1233 1089 27.29      
12 B2 774 684 10.20      

Unscaled Zero Point Vibrational Energy (zpe) 8527.0 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 7529.3 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 B1B95/STO-3G
ABC
0.70600 0.17910 0.14286

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.677 0.572
C2 0.000 -0.677 0.572
F3 0.000 1.452 -0.552
F4 0.000 -1.452 -0.552
H5 0.000 1.224 1.532
H6 0.000 -1.224 1.532

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.35431.36492.40741.10472.1296
C21.35432.40741.36492.12961.1047
F31.36492.40742.90392.09603.3913
F42.40741.36492.90393.39132.0960
H51.10472.12962.09603.39132.4478
H62.12961.10473.39132.09602.4478

picture of Ethene, 1,2-difluoro-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 124.588 C1 C2 H6 119.669
C2 C1 F3 124.588 C2 C1 H5 119.669
F3 C1 H5 115.743 F4 C2 H6 115.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.018      
2 C -0.018      
3 F -0.066      
4 F -0.066      
5 H 0.084      
6 H 0.084      


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 1.054 1.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.612 0.000 0.000
y 0.000 -19.397 0.000
z 0.000 0.000 -18.057
Traceless
 xyz
x -0.885 0.000 0.000
y 0.000 -0.563 0.000
z 0.000 0.000 1.448
Polar
3z2-r22.895
x2-y2-0.215
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.430 0.000 0.000
y 0.000 3.265 0.000
z 0.000 0.000 2.032


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