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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-176.553064
Energy at 298.15K 
HF Energy-176.553064
Nuclear repulsion energy55.824681
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3503 3346 106.32 20.40 0.19 0.32
2 Σ 2359 2252 141.27 56.62 0.12 0.21
3 Σ 1102 1053 91.59 8.26 0.21 0.35
4 Π 632 604 60.32 2.99 0.75 0.86
4 Π 632 604 60.32 2.99 0.75 0.86
5 Π 419 400 1.45 15.05 0.75 0.86
5 Π 419 400 1.45 15.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4532.7 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 4328.7 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/TZVP
B
0.32709

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.093
C2 0.000 0.000 -1.284
F3 0.000 0.000 1.179
H4 0.000 0.000 -2.346

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19041.27202.2524
C21.19042.46241.0620
F31.27202.46243.5244
H42.25241.06203.5244

picture of Fluoroacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 180.000 C2 C1 F3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.195      
2 C -0.266      
3 F -0.131      
4 H 0.202      


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 -0.686 0.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.937 0.000 0.000
y 0.000 -16.937 0.000
z 0.000 0.000 -12.994
Traceless
 xyz
x -1.971 0.000 0.000
y 0.000 -1.971 0.000
z 0.000 0.000 3.943
Polar
3z2-r27.885
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 1.772 0.000 0.000
y 0.000 1.772 0.000
z 0.000 0.000 4.712


<r2> (average value of r2) Å2
<r2> 37.702
(<r2>)1/2 6.140