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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: TPSSh/TZVP

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/TZVP
 hartrees
Energy at 0K-176.611070
Energy at 298.15K 
HF Energy-176.611070
Nuclear repulsion energy55.542082
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/TZVP
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 3491 3364 100.89 24.06 0.20 0.33
2 Σ 2316 2232 135.07 52.10 0.12 0.21
3 Σ 1079 1040 85.29 9.09 0.22 0.36
4 Π 600 578 54.55 1.35 0.75 0.86
4 Π 600 578 54.55 1.35 0.75 0.86
5 Π 371 357 4.21 16.06 0.75 0.86
5 Π 371 357 4.21 16.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4412.7 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 4252.5 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 TPSSh/TZVP
B
0.32372

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

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 -1.291
F3 0.000 0.000 1.185
H4 0.000 0.000 -2.353

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19591.27982.2580
C21.19592.47571.0620
F31.27982.47573.5377
H42.25801.06203.5377

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/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.190      
2 C -0.247      
3 F -0.118      
4 H 0.174      


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 -0.664 0.664
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 1.778 0.000 0.000
y 0.000 1.778 0.000
z 0.000 0.000 4.789


<r2> (average value of r2) Å2
<r2> 37.988
(<r2>)1/2 6.163