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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-504.511252
Energy at 298.15K-504.511164
HF Energy-504.254776
Nuclear repulsion energy274.631453
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 MP2/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 A1 1622 1414 0.00      
2 A1 718 626 0.00      
3 A1 363 317 0.00      
4 B1 163 142 0.00      
5 B2 2141 1867 614.22      
6 B2 1119 976 128.63      
7 B2 523 456 16.97      
8 E 1428 1245 85.76      
8 E 1428 1245 85.76      
9 E 595 519 22.00      
9 E 595 519 22.00      
10 E 535 466 0.81      
10 E 535 466 0.81      
11 E 94 82 0.05      
11 E 94 82 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 5974.8 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 5209.4 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 MP2/STO-3G
ABC
0.17607 0.03917 0.03917

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.000 1.329
C3 0.000 0.000 -1.329
F4 0.000 1.122 2.116
F5 0.000 -1.122 2.116
F6 1.122 0.000 -2.116
F7 -1.122 0.000 -2.116

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.32881.32882.39492.39492.39492.3949
C21.32882.65761.37081.37083.62273.6227
C31.32882.65763.62273.62271.37081.3708
F42.39491.37083.62272.24494.51924.5192
F52.39491.37083.62272.24494.51924.5192
F62.39493.62271.37084.51924.51922.2449
F72.39493.62271.37084.51924.51922.2449

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.029 C1 C2 F5 125.029
C1 C3 F6 125.029 C1 C3 F7 125.029
C2 C1 C3 180.000 F4 C2 F5 109.942
F6 C3 F7 109.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability