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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: QCISD(T)=FULL/aug-cc-pVQZ

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(T)=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-176.444878
Energy at 298.15K 
HF Energy-175.726387
Nuclear repulsion energy55.592028
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(T)=FULL/aug-cc-pVQZ
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 3506 3506        
2 Σ 2290 2290        
3 Σ 1075 1075        
4 Π 628 628        
4 Π 628 628        
5 Π 388 388        
5 Π 388 388        

Unscaled Zero Point Vibrational Energy (zpe) 4451.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4451.2 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(T)=FULL/aug-cc-pVQZ
B
0.32422

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.093
C2 0.000 0.000 -1.291
F3 0.000 0.000 1.184
H4 0.000 0.000 -2.350

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19761.27672.2566
C21.19762.47431.0590
F31.27672.47433.5333
H42.25661.05903.5333

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