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

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-277.074421
Energy at 298.15K-277.076741
HF Energy-277.074421
Nuclear repulsion energy111.578012
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 wB97X-D/cc-pVTZ
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 3243 3100 0.00      
2 Ag 1788 1710 0.00      
3 Ag 1324 1266 0.00      
4 Ag 1178 1126 0.00      
5 Ag 566 541 0.00      
6 Au 912 872 72.06      
7 Au 346 331 4.47      
8 Bg 841 804 0.00      
9 Bu 3234 3092 13.51      
10 Bu 1312 1254 24.53      
11 Bu 1200 1147 312.33      
12 Bu 325 311 11.77      

Unscaled Zero Point Vibrational Energy (zpe) 8134.9 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 7777.0 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 wB97X-D/cc-pVTZ
ABC
1.94710 0.13518 0.12640

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.329 0.572 0.000
C2 0.329 -0.572 0.000
F3 0.329 1.734 0.000
F4 -0.329 -1.734 0.000
H5 -1.405 0.664 0.000
H6 1.405 -0.664 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.31841.33522.30531.08092.1292
C21.31842.30531.33522.12921.0809
F31.33522.30533.52932.03752.6286
F42.30531.33523.52932.62862.0375
H51.08092.12922.03752.62863.1089
H62.12921.08092.62862.03753.1089

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 120.621 C1 C2 H6 124.808
C2 C1 F3 120.621 C2 C1 H5 124.808
F3 C1 H5 114.570 F4 C2 H6 114.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.068      
2 C 0.068      
3 F -0.173      
4 F -0.173      
5 H 0.105      
6 H 0.105      


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 -18.838 -2.372 0.000
y -2.372 -25.227 0.000
z 0.000 0.000 -22.264
Traceless
 xyz
x 4.908 -2.372 0.000
y -2.372 -4.676 0.000
z 0.000 0.000 -0.231
Polar
3z2-r2-0.463
x2-y26.389
xy-2.372
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.660 -0.499 0.000
y -0.499 4.826 0.000
z 0.000 0.000 2.368


<r2> (average value of r2) Å2
<r2> 79.786
(<r2>)1/2 8.932