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

using model chemistry: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-277.011997
Energy at 298.15K-277.014294
Nuclear repulsion energy111.897306
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 BLYP/cc-pVDZ
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 3142 3147 12.77      
2 A1 1702 1704 46.61      
3 A1 1235 1237 27.42      
4 A1 977 978 61.15      
5 A1 220 221 2.02      
6 A2 806 807 0.00      
7 A2 489 489 0.00      
8 B1 750 751 31.47      
9 B2 3118 3123 0.30      
10 B2 1342 1344 28.70      
11 B2 1095 1097 107.27      
12 B2 742 743 27.31      

Unscaled Zero Point Vibrational Energy (zpe) 7807.9 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 7820.4 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 BLYP/cc-pVDZ
ABC
0.69651 0.18771 0.14786

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 0.582
C2 0.000 -0.671 0.582
F3 0.000 1.412 -0.556
F4 0.000 -1.412 -0.556
H5 0.000 1.258 1.511
H6 0.000 -1.258 1.511

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.34221.35792.37391.09912.1415
C21.34222.37391.35792.14151.0991
F31.35792.37392.82492.07253.3771
F42.37391.35792.82493.37712.0725
H51.09912.14152.07253.37712.5167
H62.14151.09913.37712.07252.5167

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 123.089 C1 C2 H6 122.295
C2 C1 F3 123.089 C2 C1 H5 122.295
F3 C1 H5 114.616 F4 C2 H6 114.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.136      
2 C 0.136      
3 F -0.139      
4 F -0.139      
5 H 0.003      
6 H 0.003      


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 1.959 1.959
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.141 0.000 0.000
y 0.000 -21.869 0.000
z 0.000 0.000 -19.608
Traceless
 xyz
x -1.402 0.000 0.000
y 0.000 -0.995 0.000
z 0.000 0.000 2.397
Polar
3z2-r24.793
x2-y2-0.272
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.772 0.000 0.000
y 0.000 4.831 0.000
z 0.000 0.000 3.393


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