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All results from a given calculation for C4F2 (difluorobutadiyne)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1ΣG
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-347.067205
Energy at 298.15K 
HF Energy-347.067205
Nuclear repulsion energy162.921614
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/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2671 2671 0.00 339.48 0.33 0.50
2 Σg 1485 1485 0.00 42.78 0.33 0.49
3 Σg 569 569 0.00 2.39 0.24 0.39
4 Σu 2565 2565 245.44 0.00 0.00 0.00
5 Σu 1130 1130 69.86 0.00 0.00 0.00
6 Πg 466 466 0.00 17.66 0.75 0.86
6 Πg 466 466 0.00 17.66 0.75 0.86
7 Πg 306 306 0.00 3.78 0.75 0.86
7 Πg 306 306 0.00 3.78 0.75 0.86
8 Πu 353 353 2.60 0.00 0.00 0.00
8 Πu 353 353 2.60 0.00 0.00 0.00
9 Πu 109 109 0.51 0.00 0.00 0.00
9 Πu 109 109 0.51 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5443.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5443.9 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/STO-3G
B
0.03406

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.696
C2 0.000 0.000 -0.696
C3 0.000 0.000 1.906
C4 0.000 0.000 -1.906
F5 0.000 0.000 3.229
F6 0.000 0.000 -3.229

Atom - Atom Distances (Å)
  C1 C2 C3 C4 F5 F6
C11.39301.20932.60222.53223.9252
C21.39302.60221.20933.92522.5322
C31.20932.60223.81151.32295.1345
C42.60221.20933.81155.13451.3229
F52.53223.92521.32295.13456.4574
F63.92522.53225.13451.32296.4574

picture of difluorobutadiyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 F5 180.000
C2 C1 C3 180.000 C2 C4 F6 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 C -0.058      
3 C 0.062      
4 C 0.062      
5 F -0.004      
6 F -0.004      


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 -27.710 0.000 0.000
y 0.000 -27.710 0.000
z 0.000 0.000 -22.354
Traceless
 xyz
x -2.678 0.000 0.000
y 0.000 -2.678 0.000
z 0.000 0.000 5.356
Polar
3z2-r210.712
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.538 0.000 0.000
y 0.000 0.538 0.000
z 0.000 0.000 9.620


<r2> (average value of r2) Å2
<r2> 253.237
(<r2>)1/2 15.913