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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: HSEh1PBE/6-311G*

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/6-311G*
 hartrees
Energy at 0K-176.413070
Energy at 298.15K 
HF Energy-176.413070
Nuclear repulsion energy55.761540
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/6-311G*
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 3364 85.97 21.10 0.27 0.42
2 Σ 2354 2259 128.81 39.66 0.19 0.33
3 Σ 1098 1054 86.83 7.97 0.23 0.38
4 Π 607 582 54.10 1.04 0.75 0.86
4 Π 607 582 54.10 1.04 0.75 0.86
5 Π 436 418 3.36 12.81 0.75 0.86
5 Π 436 418 3.36 12.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4521.0 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 4338.3 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/6-311G*
B
0.32633

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

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 -1.286
F3 0.000 0.000 1.180
H4 0.000 0.000 -2.349

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19311.27232.2564
C21.19312.46531.0633
F31.27232.46533.5287
H42.25641.06333.5287

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/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.124      
2 C -0.253      
3 F -0.130      
4 H 0.258      


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 -0.590 0.590
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.871 0.000 0.000
y 0.000 -16.871 0.000
z 0.000 0.000 -12.655
Traceless
 xyz
x -2.108 0.000 0.000
y 0.000 -2.108 0.000
z 0.000 0.000 4.216
Polar
3z2-r28.432
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 1.545 0.000 0.000
y 0.000 1.545 0.000
z 0.000 0.000 4.457


<r2> (average value of r2) Å2
<r2> 37.671
(<r2>)1/2 6.138