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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: PBEPBEultrafine/aug-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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-176.422148
Energy at 298.15K 
HF Energy-176.422148
Nuclear repulsion energy55.283359
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 PBEPBEultrafine/aug-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 3418 3379 96.68 25.60 0.28 0.43
2 Σ 2255 2230 139.60 86.62 0.03 0.05
3 Σ 1061 1049 77.87 11.08 0.19 0.31
4 Π 565 558 46.73 0.47 0.75 0.86
4 Π 565 558 46.73 0.47 0.75 0.86
5 Π 367 363 1.86 6.79 0.75 0.86
5 Π 367 363 1.86 6.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4298.0 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 4249.8 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 PBEPBEultrafine/aug-cc-pVTZ
B
0.32069

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-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 -1.297
F3 0.000 0.000 1.190
H4 0.000 0.000 -2.365

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20381.28362.2719
C21.20382.48751.0681
F31.28362.48753.5556
H42.27191.06813.5556

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 PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.354      
2 C -0.634      
3 F -0.207      
4 H 0.487      


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 -0.502 0.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.204 0.000 0.000
y 0.000 -17.204 0.000
z 0.000 0.000 -13.013
Traceless
 xyz
x -2.095 0.000 0.000
y 0.000 -2.095 0.000
z 0.000 0.000 4.191
Polar
3z2-r28.381
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 2.964 0.000 0.000
y 0.000 2.964 0.000
z 0.000 0.000 5.181


<r2> (average value of r2) Å2
<r2> 38.367
(<r2>)1/2 6.194