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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: TPSSh/cc-pVTZ

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 TPSSh/cc-pVTZ
 hartrees
Energy at 0K-176.610477
Energy at 298.15K 
HF Energy-176.610477
Nuclear repulsion energy55.592462
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 TPSSh/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 Σ 3487 3377 95.29 23.00 0.33 0.50
2 Σ 2311 2238 131.74 47.57 0.13 0.23
3 Σ 1081 1047 79.02 9.13 0.22 0.36
4 Π 602 583 48.92 0.41 0.75 0.86
4 Π 602 583 48.92 0.41 0.75 0.86
5 Π 392 380 2.80 9.93 0.75 0.86
5 Π 392 380 2.80 9.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4434.0 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 4293.5 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 TPSSh/cc-pVTZ
B
0.32431

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.095
C2 0.000 0.000 -1.289
F3 0.000 0.000 1.184
H4 0.000 0.000 -2.351

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19471.27872.2559
C21.19472.47341.0611
F31.27872.47343.5346
H42.25591.06113.5346

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 TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.140      
2 C -0.224      
3 F -0.062      
4 H 0.146      


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 -0.528 0.528
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.106 0.000 0.000
y 0.000 2.106 0.000
z 0.000 0.000 4.748


<r2> (average value of r2) Å2
<r2> 37.854
(<r2>)1/2 6.153