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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: PBE1PBE/cc-pVDZ

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 PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-176.361287
Energy at 298.15K 
HF Energy-176.361287
Nuclear repulsion energy55.413397
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 PBE1PBE/cc-pVDZ
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 3527 3391 106.53 24.19 0.24 0.38
2 Σ 2359 2268 117.32 36.68 0.23 0.38
3 Σ 1102 1060 83.16 8.30 0.23 0.37
4 Π 627 603 45.73 0.24 0.75 0.86
4 Π 627 603 45.73 0.24 0.75 0.86
5 Π 423 407 1.82 11.36 0.75 0.86
5 Π 423 407 1.82 11.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4544.4 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 4369.5 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 PBE1PBE/cc-pVDZ
B
0.32222

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.091
C2 0.000 0.000 -1.295
F3 0.000 0.000 1.187
H4 0.000 0.000 -2.365

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20381.27742.2743
C21.20382.48131.0705
F31.27742.48133.5518
H42.27431.07053.5518

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 PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.019      
2 C -0.021      
3 F -0.040      
4 H 0.042      


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 -0.490 0.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.736 0.000 0.000
y 0.000 -16.736 0.000
z 0.000 0.000 -12.503
Traceless
 xyz
x -2.116 0.000 0.000
y 0.000 -2.116 0.000
z 0.000 0.000 4.233
Polar
3z2-r28.466
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 1.479 0.000 0.000
y 0.000 1.479 0.000
z 0.000 0.000 4.475


<r2> (average value of r2) Å2
<r2> 37.944
(<r2>)1/2 6.160