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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B2PLYP=FULLultrafine/6-311G*

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 B2PLYP=FULLultrafine/6-311G*
 hartrees
Energy at 0K-176.461303
Energy at 298.15K 
HF Energy-176.291156
Nuclear repulsion energy55.517023
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 B2PLYP=FULLultrafine/6-311G*
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 82.36 23.90 0.27 0.42
2 Σ 2303 2303 116.00 33.17 0.20 0.33
3 Σ 1075 1075 79.92 7.81 0.23 0.38
4 Π 587 587 50.25 0.51 0.75 0.86
4 Π 587 587 50.25 0.51 0.75 0.86
5 Π 411 411 4.84 12.37 0.75 0.86
5 Π 411 411 4.84 12.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4441.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4441.7 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 B2PLYP=FULLultrafine/6-311G*
B
0.32338

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.094
C2 0.000 0.000 -1.292
F3 0.000 0.000 1.185
H4 0.000 0.000 -2.353

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19861.27882.2599
C21.19862.47741.0612
F31.27882.47743.5386
H42.25991.06123.5386

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