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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: M06-2X/3-21G*

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 M06-2X/3-21G*
 hartrees
Energy at 0K-175.512166
Energy at 298.15K 
HF Energy-175.512166
Nuclear repulsion energy54.946892
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 M06-2X/3-21G*
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 3557 3370 85.62 24.68 0.17 0.29
2 Σ 2411 2283 50.05 24.72 0.30 0.46
3 Σ 1112 1054 47.35 7.69 0.29 0.45
4 Π 799 757 63.29 1.93 0.75 0.86
4 Π 799 757 63.29 1.93 0.75 0.86
5 Π 479 454 0.06 10.64 0.75 0.86
5 Π 479 454 0.06 10.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4818.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 4563.9 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 M06-2X/3-21G*
B
0.31675

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.107
C2 0.000 0.000 -1.302
F3 0.000 0.000 1.201
H4 0.000 0.000 -2.361

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19461.30832.2542
C21.19462.50291.0597
F31.30832.50293.5626
H42.25421.05973.5626

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 M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.108      
2 C -0.103      
3 F -0.284      
4 H 0.279      


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 -0.932 0.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.681 0.000 0.000
y 0.000 -16.681 0.000
z 0.000 0.000 -13.261
Traceless
 xyz
x -1.710 0.000 0.000
y 0.000 -1.710 0.000
z 0.000 0.000 3.420
Polar
3z2-r26.840
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 0.851 0.000 0.000
y 0.000 0.851 0.000
z 0.000 0.000 4.104


<r2> (average value of r2) Å2
<r2> 38.504
(<r2>)1/2 6.205