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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: mPW1PW91/6-31+G**

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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-176.502131
Energy at 298.15K 
HF Energy-176.502131
Nuclear repulsion energy55.432043
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 mPW1PW91/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 0.83     0.00      
1 0 1 1 0.00      
1 -0.01     0.00      
1 0     0.00      
1 0     -0.27      
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 0.9518) 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 mPW1PW91/6-31+G**
B
0.32240

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

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 -1.294
F3 0.000 0.000 1.187
H4 0.000 0.000 -2.358

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20011.28082.2640
C21.20012.48101.0639
F31.28082.48103.5448
H42.26401.06393.5448

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 mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.141      
2 C 0.199      
3 F -0.296      
4 H 0.238      


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 -0.724 0.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.073 0.000 0.000
y 0.000 -17.073 0.000
z 0.000 0.000 -12.877
Traceless
 xyz
x -2.098 0.000 0.000
y 0.000 -2.098 0.000
z 0.000 0.000 4.196
Polar
3z2-r28.392
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 1.919 0.000 0.000
y 0.000 1.919 0.000
z 0.000 0.000 4.880


<r2> (average value of r2) Å2
<r2> 38.129
(<r2>)1/2 6.175