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All results from a given calculation for CF3CHO (trifluoroacetaldehyde)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-447.678725
Energy at 298.15K-447.681002
HF Energy-447.016560
Nuclear repulsion energy247.285013
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3080 2930 45.21      
2 A' 1632 1553 13.18      
3 A' 1462 1391 33.18      
4 A' 1312 1248 121.79      
5 A' 1243 1182 160.36      
6 A' 828 788 31.91      
7 A' 683 650 28.27      
8 A' 503 479 20.58      
9 A' 422 401 5.86      
10 A' 237 225 6.53      
11 A" 1266 1204 230.91      
12 A" 1025 975 4.11      
13 A" 513 488 4.55      
14 A" 284 270 0.18      
15 A" 63 60 11.31      

Unscaled Zero Point Vibrational Energy (zpe) 7276.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 6921.9 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 MP2/3-21G*
ABC
0.17392 0.09601 0.09440

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.023 0.360 0.000
C2 0.514 -1.087 0.000
O3 -0.250 -2.068 0.000
F4 -1.341 0.429 0.000
F5 0.514 1.011 1.112
F6 0.514 1.011 -1.112
H7 1.607 -1.147 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 F4 F5 F6 H7
C11.52762.44371.36621.37831.37832.1861
C21.52761.24382.39532.37372.37371.0949
O32.44371.24382.72513.36143.36142.0730
F41.36622.39532.72512.23942.23943.3428
F51.37832.37373.36142.23942.22342.6619
F61.37832.37373.36142.23942.22342.6619
H72.18611.09492.07303.34282.66192.6619

picture of trifluoroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.389 C1 C2 H7 111.881
C2 C1 F4 111.613 C2 C1 F5 109.437
C2 C1 F6 109.437 O3 C2 H7 124.730
F4 C1 F5 109.367 F4 C1 F6 109.367
F5 C1 F6 107.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability