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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: CCSD=FULL/Def2TZVPP

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 CCSD=FULL/Def2TZVPP
 hartrees
Energy at 0K-176.333756
Energy at 298.15K 
HF Energy-175.721603
Nuclear repulsion energy55.664321
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 CCSD=FULL/Def2TZVPP
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 3517 3517 88.05      
2 Σ 2326 2326 117.26      
3 Σ 1090 1090 78.43      
4 Π 648 648 49.05      
4 Π 648 648 49.05      
5 Π 400 400 0.89      
5 Π 400 400 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 4514.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4514.1 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 CCSD=FULL/Def2TZVPP
B
0.32510

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/Def2TZVPP

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 -1.288
F3 0.000 0.000 1.182
H4 0.000 0.000 -2.346

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19411.27672.2517
C21.19412.47071.0576
F31.27672.47073.5284
H42.25171.05763.5284

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