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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: TPSSh/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 TPSSh/Def2TZVPP
 hartrees
Energy at 0K-176.618480
Energy at 298.15K 
HF Energy-176.618480
Nuclear repulsion energy55.583542
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 TPSSh/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 3485 3485 93.85 24.99 0.23 0.37
2 Σ 2308 2308 136.37 56.39 0.09 0.17
3 Σ 1080 1080 81.43 9.60 0.20 0.34
4 Π 606 606 51.20 0.90 0.75 0.86
4 Π 606 606 51.20 0.90 0.75 0.86
5 Π 389 389 2.24 10.60 0.75 0.86
5 Π 389 389 2.24 10.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4431.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4431.7 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 TPSSh/Def2TZVPP
B
0.32420

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/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 -1.290
F3 0.000 0.000 1.184
H4 0.000 0.000 -2.351

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19531.27852.2569
C21.19532.47391.0616
F31.27852.47393.5354
H42.25691.06163.5354

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
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.031      
2 C -0.086      
3 F -0.116      
4 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.548 0.548
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.228 0.000 0.000
y 0.000 2.228 0.000
z 0.000 0.000 4.857


<r2> (average value of r2) Å2
<r2> 37.907
(<r2>)1/2 6.157