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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: CCD/cc-pCVTZ

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 CCD/cc-pCVTZ
 hartrees
Energy at 0K-176.273006
Energy at 298.15K 
HF Energy-175.714254
Nuclear repulsion energy55.677456
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 CCD/cc-pCVTZ
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 3509 3509 89.54      
2 Σ 2346 2346 114.01      
3 Σ 1097 1097 78.29      
4 Π 629 629 47.18      
4 Π 629 629 47.18      
5 Π 411 411 1.68      
5 Π 411 411 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 4516.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4516.2 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 CCD/cc-pCVTZ
B
0.32531

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

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 -1.287
F3 0.000 0.000 1.182
H4 0.000 0.000 -2.348

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19281.27672.2531
C21.19282.46951.0603
F31.27672.46953.5298
H42.25311.06033.5298

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