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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: TPSSh/6-31G

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/6-31G
 hartrees
Energy at 0K-176.498201
Energy at 298.15K 
HF Energy-176.498201
Nuclear repulsion energy54.335259
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/6-31G
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 3536 3402 79.23 32.00 0.18 0.30
2 Σ 2304 2217 57.27 29.47 0.25 0.40
3 Σ 1017 978 49.10 9.22 0.25 0.40
4 Π 633 609 56.30 0.54 0.75 0.86
4 Π 633 609 56.30 0.54 0.75 0.86
5 Π 330 318 2.39 13.24 0.75 0.86
5 Π 330 318 2.39 13.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4392.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 4225.6 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/6-31G
B
0.30960

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.110
C2 0.000 0.000 -1.317
F3 0.000 0.000 1.216
H4 0.000 0.000 -2.379

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20731.32542.2696
C21.20732.53271.0623
F31.32542.53273.5950
H42.26961.06233.5950

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/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 C -0.019      
3 F -0.264      
4 H 0.256      


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 -1.068 1.068
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 1.077 0.000 0.000
y 0.000 1.077 0.000
z 0.000 0.000 4.470


<r2> (average value of r2) Å2
<r2> 39.026
(<r2>)1/2 6.247