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All results from a given calculation for HCCF (Fluoroacetylene)

using model chemistry: TPSSh/aug-cc-pVQZ

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 TPSSh/aug-cc-pVQZ
 hartrees
Energy at 0K-176.625567
Energy at 298.15K 
HF Energy-176.625567
Nuclear repulsion energy55.628827
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 TPSSh/aug-cc-pVQZ
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 3480 3480 94.98 24.27 0.29 0.45
2 Σ 2303 2303 141.92 89.34 0.03 0.05
3 Σ 1077 1077 82.07 10.45 0.18 0.31
4 Π 603 603 48.17 0.66 0.75 0.86
4 Π 603 603 48.17 0.66 0.75 0.86
5 Π 389 389 1.28 6.74 0.75 0.86
5 Π 389 389 1.28 6.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4421.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4421.8 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 TPSSh/aug-cc-pVQZ
B
0.32474

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVQZ

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 -1.289
F3 0.000 0.000 1.183
H4 0.000 0.000 -2.349

Atom - Atom Distances (Å)
  C1 C2 F3 H4
C11.19381.27792.2546
C21.19382.47171.0608
F31.27792.47173.5326
H42.25461.06083.5326

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 TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.471      
2 C -0.942      
3 F -0.246      
4 H 0.716      


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 -0.584 0.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.885 0.000 0.000
y 0.000 2.885 0.000
z 0.000 0.000 4.995


<r2> (average value of r2) Å2
<r2> 37.897
(<r2>)1/2 6.156