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

using model chemistry: LSDA/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 LSDA/cc-pVTZ
 hartrees
Energy at 0K-275.819363
Energy at 298.15K-275.821605
Nuclear repulsion energy111.727836
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/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 3127 3093 0.00      
2 Ag 1737 1718 0.00      
3 Ag 1253 1239 0.00      
4 Ag 1169 1156 0.00      
5 Ag 554 548 0.00      
6 Au 865 855 74.82      
7 Au 336 332 2.98      
8 Bg 802 793 0.00      
9 Bu 3120 3086 14.62      
10 Bu 1254 1241 122.39      
11 Bu 1198 1185 180.20      
12 Bu 304 301 10.16      

Unscaled Zero Point Vibrational Energy (zpe) 7859.7 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 7774.1 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 LSDA/cc-pVTZ
ABC
1.93340 0.13583 0.12691

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.329 0.573 0.000
C2 0.329 -0.573 0.000
F3 0.329 1.727 0.000
F4 -0.329 -1.727 0.000
H5 -1.418 0.658 0.000
H6 1.418 -0.658 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32081.32832.29991.09242.1365
C21.32082.29991.32832.13651.0924
F31.32832.29993.51612.04782.6217
F42.29991.32833.51612.62172.0478
H51.09242.13652.04782.62173.1259
H62.13651.09242.62172.04783.1259

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 120.490 C1 C2 H6 124.307
C2 C1 F3 120.490 C2 C1 H5 124.307
F3 C1 H5 115.203 F4 C2 H6 115.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.023      
2 C 0.023      
3 F -0.125      
4 F -0.125      
5 H 0.102      
6 H 0.102      


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 -19.128 -2.140 0.000
y -2.140 -24.968 0.000
z 0.000 0.000 -22.605
Traceless
 xyz
x 4.659 -2.140 0.000
y -2.140 -4.101 0.000
z 0.000 0.000 -0.557
Polar
3z2-r2-1.115
x2-y25.840
xy-2.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.838 -0.470 0.000
y -0.470 4.956 0.000
z 0.000 0.000 2.422


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