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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: CCSD=FULL/aug-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 CCSD=FULL/aug-cc-pCVTZ
 hartrees
Energy at 0K-176.442748
Energy at 298.15K 
HF Energy-175.716041
Nuclear repulsion energy55.661411
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/aug-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 3504 3504 88.97      
2 Σ 2331 2331 119.05      
3 Σ 1091 1091 79.13      
4 Π 624 624 44.76      
4 Π 624 624 44.76      
5 Π 402 402 0.70      
5 Π 402 402 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 4488.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4488.5 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/aug-cc-pCVTZ
B
0.32511

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-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 -1.288
F3 0.000 0.000 1.183
H4 0.000 0.000 -2.348

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19331.27712.2529
C21.19332.47041.0596
F31.27712.47043.5301
H42.25291.05963.5301

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