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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-450.435898
Energy at 298.15K-450.438304
HF Energy-449.480415
Nuclear repulsion energy251.683739
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' 3047 2901 44.44      
2 A' 1855 1767 55.91      
3 A' 1437 1368 44.42      
4 A' 1380 1314 137.56      
5 A' 1271 1210 192.18      
6 A' 867 826 40.99      
7 A' 710 676 36.03      
8 A' 531 506 17.39      
9 A' 436 415 4.32      
10 A' 260 248 6.49      
11 A" 1263 1203 283.23      
12 A" 988 941 5.83      
13 A" 530 505 2.13      
14 A" 315 300 0.92      
15 A" 65 62 13.08      

Unscaled Zero Point Vibrational Energy (zpe) 7476.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 7119.4 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 QCISD/6-31G*
ABC
0.18078 0.09921 0.09754

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 0.023 0.359 0.000
C2 0.506 -1.094 0.000
O3 -0.266 -2.027 0.000
F4 -1.307 0.448 0.000
F5 0.506 0.989 1.090
F6 0.506 0.989 -1.090
H7 1.606 -1.204 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 F4 F5 F6 H7
C11.53082.40281.33331.34861.34862.2238
C21.53081.21052.37982.35112.35111.1052
O32.40281.21052.68443.29813.29812.0445
F41.33332.37982.68442.18352.18353.3483
F51.34862.35113.29812.18352.18062.6845
F61.34862.35113.29812.18352.18062.6845
H72.22381.10522.04453.34832.68452.6845

picture of trifluoroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 122.012 C1 C2 H7 114.077
C2 C1 F4 112.203 C2 C1 F5 109.313
C2 C1 F6 109.313 O3 C2 H7 123.912
F4 C1 F5 109.010 F4 C1 F6 109.010
F5 C1 F6 107.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability