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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: HSEh1PBE/STO-3G

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 HSEh1PBE/STO-3G
 hartrees
Energy at 0K-173.992744
Energy at 298.15K 
HF Energy-173.992744
Nuclear repulsion energy54.492359
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 HSEh1PBE/STO-3G
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 3744 3306 171.99 22.14 0.28 0.44
2 Σ 2531 2235 15.90 14.42 0.29 0.45
3 Σ 1121 990 16.08 5.36 0.26 0.41
4 Π 677 598 22.43 0.14 0.75 0.86
4 Π 677 598 22.43 0.14 0.75 0.86
5 Π 391 345 2.00 3.73 0.75 0.86
5 Π 391 345 2.00 3.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4765.3 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 4208.3 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 HSEh1PBE/STO-3G
B
0.31164

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

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 -1.311
F3 0.000 0.000 1.212
H4 0.000 0.000 -2.385

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20091.32132.2757
C21.20092.52231.0747
F31.32132.52233.5970
H42.27571.07473.5970

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 HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.041      
2 C -0.154      
3 F -0.011      
4 H 0.124      


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 -0.117 0.117
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.770 0.000 0.000
y 0.000 -14.770 0.000
z 0.000 0.000 -11.846
Traceless
 xyz
x -1.462 0.000 0.000
y 0.000 -1.462 0.000
z 0.000 0.000 2.924
Polar
3z2-r25.849
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.318 0.000 0.000
y 0.000 0.318 0.000
z 0.000 0.000 3.061


<r2> (average value of r2) Å2
<r2> 37.897
(<r2>)1/2 6.156