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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: B2PLYP/STO-3G

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 B2PLYP/STO-3G
 hartrees
Energy at 0K-173.923800
Energy at 298.15K 
HF Energy-173.863282
Nuclear repulsion energy54.196670
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 B2PLYP/STO-3G
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 3734 3734 149.78 23.52 0.29 0.45
2 Σ 2451 2451 14.65 12.89 0.28 0.44
3 Σ 1092 1092 14.22 4.74 0.26 0.41
4 Π 666 666 18.85 0.22 0.75 0.86
4 Π 666 666 18.85 0.22 0.75 0.86
5 Π 368 368 2.26 3.35 0.75 0.86
5 Π 368 368 2.26 3.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4672.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4672.1 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 B2PLYP/STO-3G
B
0.30819

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.110
C2 0.000 0.000 -1.318
F3 0.000 0.000 1.219
H4 0.000 0.000 -2.394

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.20801.32902.2834
C21.20802.53701.0754
F31.32902.53703.6124
H42.28341.07543.6124

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 B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.047      
2 C -0.141      
3 F -0.022      
4 H 0.116      


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 -0.217 0.217
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.744 0.000 0.000
y 0.000 -14.744 0.000
z 0.000 0.000 -12.063
Traceless
 xyz
x -1.341 0.000 0.000
y 0.000 -1.341 0.000
z 0.000 0.000 2.681
Polar
3z2-r25.363
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 0.310 0.000 0.000
y 0.000 0.310 0.000
z 0.000 0.000 3.049


<r2> (average value of r2) Å2
<r2> 38.244
(<r2>)1/2 6.184