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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-176.494743
Energy at 298.15K 
HF Energy-176.494743
Nuclear repulsion energy55.450161
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 B1B95/6-31+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 Σ 3524 3371 101.48 24.05 0.23 0.38
2 Σ 2351 2249 134.78 62.45 0.08 0.14
3 Σ 1102 1054 87.92 9.24 0.22 0.36
4 Π 619 592 62.34 2.74 0.75 0.86
4 Π 619 592 62.34 2.74 0.75 0.86
5 Π 424 405 1.59 15.21 0.75 0.86
5 Π 424 405 1.59 15.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4530.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 4334.1 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 B1B95/6-31+G**
B
0.32262

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+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 -1.293
F3 0.000 0.000 1.187
H4 0.000 0.000 -2.357

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19931.28082.2626
C21.19932.48011.0632
F31.28082.48013.5434
H42.26261.06323.5434

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 B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 C 0.159      
3 F -0.297      
4 H 0.223      


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 -0.748 0.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.028 0.000 0.000
y 0.000 -17.028 0.000
z 0.000 0.000 -12.927
Traceless
 xyz
x -2.050 0.000 0.000
y 0.000 -2.050 0.000
z 0.000 0.000 4.101
Polar
3z2-r28.201
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 1.907 0.000 0.000
y 0.000 1.907 0.000
z 0.000 0.000 4.874


<r2> (average value of r2) Å2
<r2> 38.101
(<r2>)1/2 6.173