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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: HSEh1PBE/aug-cc-pCVTZ

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/aug-cc-pCVTZ
 hartrees
Energy at 0K-176.440404
Energy at 298.15K 
HF Energy-176.440404
Nuclear repulsion energy55.830300
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/aug-cc-pCVTZ
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 3495 3495 102.55 21.91 0.29 0.45
2 Σ 2341 2341 145.92 89.23 0.03 0.05
3 Σ 1105 1105 84.40 10.10 0.17 0.29
4 Π 623 623 50.09 1.06 0.75 0.86
4 Π 623 623 50.09 1.06 0.75 0.86
5 Π 426 426 0.34 6.26 0.75 0.86
5 Π 426 426 0.34 6.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4519.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4519.2 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/aug-cc-pCVTZ
B
0.32714

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pCVTZ

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 -1.284
F3 0.000 0.000 1.178
H4 0.000 0.000 -2.346

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19121.27112.2529
C21.19122.46231.0617
F31.27112.46233.5240
H42.25291.06173.5240

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/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.326      
2 C -0.610      
3 F -0.186      
4 H 0.470      


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 -17.039 0.000 0.000
y 0.000 -17.039 0.000
z 0.000 0.000 -12.871
Traceless
 xyz
x -2.084 0.000 0.000
y 0.000 -2.084 0.000
z 0.000 0.000 4.168
Polar
3z2-r28.336
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 2.830 0.000 0.000
y 0.000 2.830 0.000
z 0.000 0.000 4.903


<r2> (average value of r2) Å2
<r2> 37.716
(<r2>)1/2 6.141