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

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 C2V 1A1
Energy calculated at LSDA/cc-pVTZ
 hartrees
Energy at 0K-275.820501
Energy at 298.15K-275.822854
Nuclear repulsion energy114.409597
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 A1 3146 3111 4.92      
2 A1 1751 1732 61.17      
3 A1 1247 1234 45.52      
4 A1 1030 1019 44.36      
5 A1 221 218 1.73      
6 A2 825 816 0.00      
7 A2 512 507 0.00      
8 B1 741 733 48.18      
9 B2 3124 3090 5.83      
10 B2 1350 1335 42.49      
11 B2 1155 1142 104.78      
12 B2 771 762 24.51      

Unscaled Zero Point Vibrational Energy (zpe) 7935.9 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 7849.4 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 LSDA/cc-pVTZ
ABC
0.71878 0.19846 0.15552

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 0.572
C2 0.000 -0.661 0.572
F3 0.000 1.370 -0.547
F4 0.000 -1.370 -0.547
H5 0.000 1.245 1.494
H6 0.000 -1.245 1.494

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32181.32452.31881.09132.1169
C21.32182.31881.32452.11691.0913
F31.32452.31882.74042.04473.3169
F42.31881.32452.74043.31692.0447
H51.09132.11692.04473.31692.4891
H62.11691.09133.31692.04472.4891

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 122.376 C1 C2 H6 122.330
C2 C1 F3 122.376 C2 C1 H5 122.330
F3 C1 H5 115.294 F4 C2 H6 115.294
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 0.014      
2 C 0.014      
3 F -0.116      
4 F -0.116      
5 H 0.103      
6 H 0.103      


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 2.057 2.057
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.630 0.000 0.000
y 0.000 -21.867 0.000
z 0.000 0.000 -19.809
Traceless
 xyz
x -1.792 0.000 0.000
y 0.000 -0.648 0.000
z 0.000 0.000 2.440
Polar
3z2-r24.880
x2-y2-0.763
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.461 0.000 0.000
y 0.000 5.049 0.000
z 0.000 0.000 3.686


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