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All results from a given calculation for CF3CHO (trifluoroacetaldehyde)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-449.992841
Energy at 298.15K-449.995061
HF Energy-449.302387
Nuclear repulsion energy244.769879
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 QCISD/6-31G
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' 3065 2953 25.69      
2 A' 1693 1632 28.08      
3 A' 1419 1368 30.31      
4 A' 1287 1240 90.08      
5 A' 1201 1158 180.66      
6 A' 813 783 50.75      
7 A' 659 635 29.36      
8 A' 492 474 23.76      
9 A' 412 397 7.09      
10 A' 256 247 6.61      
11 A" 1189 1146 239.74      
12 A" 963 928 6.49      
13 A" 487 469 4.22      
14 A" 302 291 1.05      
15 A" 47 46 16.10      

Unscaled Zero Point Vibrational Energy (zpe) 7143.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 6883.0 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 QCISD/6-31G
ABC
0.16887 0.09459 0.09313

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 0.350 0.000
C2 0.521 -1.103 0.000
O3 -0.259 -2.069 0.000
F4 -1.357 0.445 0.000
F5 0.521 1.015 1.130
F6 0.521 1.015 -1.130
H7 1.618 -1.204 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 F4 F5 F6 H7
C11.53452.43561.38661.40151.40152.2239
C21.53451.24232.43402.40022.40021.1008
O32.43561.24232.74363.37593.37592.0667
F41.38662.43402.74362.26472.26473.4011
F51.40152.40023.37592.26472.25982.7205
F61.40152.40023.37592.26472.25982.7205
H72.22391.10082.06673.40112.72052.7205

picture of trifluoroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 122.247 C1 C2 H7 114.091
C2 C1 F4 112.775 C2 C1 F5 109.589
C2 C1 F6 109.589 O3 C2 H7 123.662
F4 C1 F5 108.642 F4 C1 F6 108.642
F5 C1 F6 107.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability