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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: QCISD/Sadlej_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 QCISD/Sadlej_pVTZ
 hartrees
Energy at 0K-176.153161
Energy at 298.15K 
HF Energy-175.689091
Nuclear repulsion energy54.924398
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 QCISD/Sadlej_pVTZ
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 3447 3447 91.62      
2 Σ 2278 2278 111.39      
3 Σ 1058 1058 75.78      
4 Π 542 542 38.59      
4 Π 542 542 38.59      
5 Π 319 319 5.54      
5 Π 319 319 5.54      

Unscaled Zero Point Vibrational Energy (zpe) 4252.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4252.7 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 QCISD/Sadlej_pVTZ
B
0.31652

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Sadlej_pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.091
C2 0.000 0.000 -1.307
F3 0.000 0.000 1.197
H4 0.000 0.000 -2.385

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.21571.28822.2941
C21.21572.50381.0784
F31.28822.50383.5823
H42.29411.07843.5823

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