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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-276.997372
Energy at 298.15K-276.999650
HF Energy-276.997372
Nuclear repulsion energy111.000203
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 mPW1PW91/6-31+G**
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 3282 3123 0.00      
2 Ag 1783 1697 0.00      
3 Ag 1316 1252 0.00      
4 Ag 1168 1112 0.00      
5 Ag 559 532 0.00      
6 Au 915 871 83.65      
7 Au 338 322 4.65      
8 Bg 824 785 0.00      
9 Bu 3274 3116 14.23      
10 Bu 1302 1240 23.19      
11 Bu 1194 1136 331.52      
12 Bu 318 303 12.98      

Unscaled Zero Point Vibrational Energy (zpe) 8136.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 7744.4 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 mPW1PW91/6-31+G**
ABC
1.91302 0.13405 0.12527

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.334 0.572 0.000
C2 0.334 -0.572 0.000
F3 0.334 1.739 0.000
F4 -0.334 -1.739 0.000
H5 -1.411 0.674 0.000
H6 1.411 -0.674 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32451.34422.31081.08202.1439
C21.32452.31081.34422.14391.0820
F31.34422.31083.54112.04392.6423
F42.31081.34423.54112.64232.0439
H51.08202.14392.04392.64233.1272
H62.14391.08202.64232.04393.1272

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 119.965 C1 C2 H6 125.670
C2 C1 F3 119.965 C2 C1 H5 125.670
F3 C1 H5 114.365 F4 C2 H6 114.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.096      
2 C 0.096      
3 F -0.280      
4 F -0.280      
5 H 0.184      
6 H 0.184      


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 -18.920 -2.740 0.000
y -2.740 -26.173 0.000
z 0.000 0.000 -22.624
Traceless
 xyz
x 5.479 -2.740 0.000
y -2.740 -5.402 0.000
z 0.000 0.000 -0.078
Polar
3z2-r2-0.155
x2-y27.254
xy-2.740
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.676 -0.492 0.000
y -0.492 4.997 0.000
z 0.000 0.000 2.605


<r2> (average value of r2) Å2
<r2> 80.679
(<r2>)1/2 8.982