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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-176.614306
Energy at 298.15K 
HF Energy-176.614306
Nuclear repulsion energy55.681027
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 B3LYP/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 3491 3374 97.15 21.34 0.33 0.50
2 Σ 2324 2247 129.50 47.49 0.13 0.24
3 Σ 1085 1049 80.24 8.50 0.22 0.36
4 Π 618 598 51.09 0.94 0.75 0.86
4 Π 618 598 51.09 0.94 0.75 0.86
5 Π 413 399 1.17 9.75 0.75 0.86
5 Π 413 399 1.17 9.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4481.0 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 4331.3 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 B3LYP/cc-pVTZ
B
0.32536

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.095
C2 0.000 0.000 -1.287
F3 0.000 0.000 1.182
H4 0.000 0.000 -2.347

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19161.27772.2512
C21.19162.46931.0596
F31.27772.46933.5289
H42.25121.05963.5289

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 B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.112      
2 C -0.213      
3 F -0.074      
4 H 0.175      


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 -0.571 0.571
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.987 0.000 0.000
y 0.000 -16.987 0.000
z 0.000 0.000 -12.951
Traceless
 xyz
x -2.018 0.000 0.000
y 0.000 -2.018 0.000
z 0.000 0.000 4.035
Polar
3z2-r28.071
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 2.098 0.000 0.000
y 0.000 2.098 0.000
z 0.000 0.000 4.705


<r2> (average value of r2) Å2
<r2> 37.849
(<r2>)1/2 6.152