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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-176.276404
Energy at 298.15K 
HF Energy-175.715098
Nuclear repulsion energy55.629372
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/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 3509 3358 90.92      
2 Σ 2337 2236 120.23      
3 Σ 1093 1046 80.36      
4 Π 628 601 44.57      
4 Π 628 601 44.57      
5 Π 408 390 0.58      
5 Π 408 390 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 4504.8 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 4311.1 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/aug-cc-pVTZ
B
0.32472

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-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 1.183
H4 0.000 0.000 -2.348

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19421.27782.2538
C21.19422.47201.0597
F31.27782.47203.5316
H42.25381.05973.5316

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