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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ

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 B2PLYP=FULLultrafine/cc-pVTZ
 hartrees
Energy at 0K-176.506668
Energy at 298.15K 
HF Energy-176.313795
Nuclear repulsion energy55.631778
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 B2PLYP=FULLultrafine/cc-pVTZ
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 3516 3359 94.94 22.70 0.31 0.48
2 Σ 2301 2198 125.61 41.80 0.13 0.24
3 Σ 1083 1035 75.85 8.46 0.22 0.36
4 Π 610 583 48.87 0.70 0.75 0.86
4 Π 610 583 48.87 0.70 0.75 0.86
5 Π 404 386 1.90 9.46 0.75 0.86
5 Π 404 386 1.90 9.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4464.1 cm-1
Scaled (by 0.9554) Zero Point Vibrational Energy (zpe) 4265.0 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 B2PLYP=FULLultrafine/cc-pVTZ
B
0.32469

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.094
C2 0.000 0.000 -1.290
F3 0.000 0.000 1.183
H4 0.000 0.000 -2.346

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19551.27712.2522
C21.19552.47261.0567
F31.27712.47263.5293
H42.25221.05673.5293

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 B2PLYP=FULLultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.104      
2 C -0.226      
3 F -0.073      
4 H 0.195      


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 -0.586 0.586
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.992 0.000 0.000
y 0.000 -16.992 0.000
z 0.000 0.000 -13.009
Traceless
 xyz
x -1.992 0.000 0.000
y 0.000 -1.992 0.000
z 0.000 0.000 3.983
Polar
3z2-r27.966
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 2.073 0.000 0.000
y 0.000 2.073 0.000
z 0.000 0.000 4.652


<r2> (average value of r2) Å2
<r2> 37.908
(<r2>)1/2 6.157