return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: CCD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at CCD/6-311+G(3df,2p)
 hartrees
Energy at 0K-512.880047
Energy at 298.15K-512.880520
HF Energy-511.441296
Nuclear repulsion energy285.681014
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 CCD/6-311+G(3df,2p)
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 1630 1537 0.00      
2 A1 754 711 0.00      
3 A1 402 379 0.00      
4 B1 164 155 0.00      
5 B2 2178 2054 944.96      
6 B2 1092 1030 531.02      
7 B2 598 564 20.21      
8 E 1330 1254 274.01      
8 E 1330 1254 274.01      
9 E 657 620 20.10      
9 E 657 620 20.10      
10 E 570 538 0.91      
10 E 570 538 0.91      
11 E 88 83 0.01      
11 E 88 83 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 6053.8 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 5709.3 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 CCD/6-311+G(3df,2p)
ABC
0.19411 0.04192 0.04192

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

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 1.295
C3 0.000 0.000 -1.295
F4 0.000 1.069 2.047
F5 0.000 -1.069 2.047
F6 1.069 0.000 -2.047
F7 -1.069 0.000 -2.047

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.29481.29482.30942.30942.30942.3094
C21.29482.58961.30711.30713.50863.5086
C31.29482.58963.50863.50861.30711.3071
F42.30941.30713.50862.13804.36434.3643
F52.30941.30713.50862.13804.36434.3643
F62.30943.50861.30714.36434.36432.1380
F72.30943.50861.30714.36434.36432.1380

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.133 C1 C2 F5 125.133
C1 C3 F6 125.133 C1 C3 F7 125.133
C2 C1 C3 180.000 F4 C2 F5 109.734
F6 C3 F7 109.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability