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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B2PLYP=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-176.400199
Energy at 298.15K 
HF Energy-176.252110
Nuclear repulsion energy55.092553
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=FULL/6-31+G**
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 3530 3357 96.11 26.76 0.22 0.36
2 Σ 2294 2182 121.94 55.28 0.07 0.14
3 Σ 1068 1016 81.35 9.13 0.22 0.36
4 Π 595 566 59.65 2.08 0.75 0.86
4 Π 595 566 59.65 2.08 0.75 0.86
5 Π 393 373 3.09 15.76 0.75 0.86
5 Π 393 373 3.09 15.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4433.8 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 4216.6 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=FULL/6-31+G**
B
0.31838

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.096
C2 0.000 0.000 -1.302
F3 0.000 0.000 1.195
H4 0.000 0.000 -2.364

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20591.29152.2681
C21.20592.49741.0621
F31.29152.49743.5596
H42.26811.06213.5596

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