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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: wB97X-D/6-31+G**

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 wB97X-D/6-31+G**
 hartrees
Energy at 0K-176.490834
Energy at 298.15K 
HF Energy-176.490834
Nuclear repulsion energy55.424970
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 wB97X-D/6-31+G**
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 3512 3345 98.96 22.54 0.23 0.38
2 Σ 2352 2240 134.87 64.97 0.08 0.15
3 Σ 1098 1045 89.07 8.91 0.22 0.36
4 Π 634 604 66.22 3.54 0.75 0.86
4 Π 634 604 66.22 3.54 0.75 0.86
5 Π 432 411 0.90 15.13 0.75 0.86
5 Π 432 411 0.90 15.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4547.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 4330.5 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 wB97X-D/6-31+G**
B
0.32235

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

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 -1.294
F3 0.000 0.000 1.187
H4 0.000 0.000 -2.358

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19921.28172.2641
C21.19922.48101.0648
F31.28172.48103.5458
H42.26411.06483.5458

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 wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.127      
2 C 0.181      
3 F -0.298      
4 H 0.243      


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 -0.757 0.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.048 0.000 0.000
y 0.000 -17.048 0.000
z 0.000 0.000 -12.892
Traceless
 xyz
x -2.078 0.000 0.000
y 0.000 -2.078 0.000
z 0.000 0.000 4.156
Polar
3z2-r28.313
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 1.913 0.000 0.000
y 0.000 1.913 0.000
z 0.000 0.000 4.886


<r2> (average value of r2) Å2
<r2> 38.128
(<r2>)1/2 6.175