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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B3PW91/Def2TZVPP

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 B3PW91/Def2TZVPP
 hartrees
Energy at 0K-176.548336
Energy at 298.15K 
HF Energy-176.548336
Nuclear repulsion energy55.752405
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 B3PW91/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 0 1 1 0.00      
1 0.84     0.00      
1 -0.02     0.00      
1 0     0.00      
1 0     -0.26      
1 0     0.57      
1 0     0.03      
1 0     0.00      
1 0     0.00      

Unscaled Zero Point Vibrational Energy (zpe) 0.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 0.4 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 B3PW91/Def2TZVPP
B
0.32620

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/Def2TZVPP

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 -1.286
F3 0.000 0.000 1.180
H4 0.000 0.000 -2.348

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19311.27292.2550
C21.19312.46601.0619
F31.27292.46603.5279
H42.25501.06193.5279

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 B3PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.047      
2 C -0.158      
3 F -0.119      
4 H 0.229      


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 -0.545 0.545
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.944 0.000 0.000
y 0.000 -16.944 0.000
z 0.000 0.000 -12.789
Traceless
 xyz
x -2.078 0.000 0.000
y 0.000 -2.078 0.000
z 0.000 0.000 4.155
Polar
3z2-r28.311
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 2.214 0.000 0.000
y 0.000 2.214 0.000
z 0.000 0.000 4.803


<r2> (average value of r2) Å2
<r2> 37.737
(<r2>)1/2 6.143