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 CF3CHO (trifluoroacetaldehyde)

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-447.690020
Energy at 298.15K-447.692297
HF Energy-447.017554
Nuclear repulsion energy247.484162
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/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' 3029 2936 42.06      
2 A' 1695 1643 19.98      
3 A' 1453 1408 42.66      
4 A' 1316 1276 110.47      
5 A' 1242 1204 156.30      
6 A' 823 797 30.33      
7 A' 682 661 30.92      
8 A' 502 487 21.40      
9 A' 421 408 5.67      
10 A' 236 229 6.65      
11 A" 1276 1236 225.64      
12 A" 1006 975 1.48      
13 A" 512 496 5.13      
14 A" 286 277 0.19      
15 A" 59 57 11.87      

Unscaled Zero Point Vibrational Energy (zpe) 7268.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 7044.8 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/3-21G
ABC
0.17418 0.09616 0.09450

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.023 0.361 0.000
C2 0.513 -1.091 0.000
O3 -0.250 -2.064 0.000
F4 -1.340 0.431 0.000
F5 0.513 1.010 1.110
F6 0.513 1.010 -1.110
H7 1.610 -1.155 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 F4 F5 F6 H7
C11.53242.44031.36521.37651.37652.1942
C21.53241.23672.39842.37662.37661.0985
O32.44031.23672.72303.35663.35662.0704
F41.36522.39842.72302.23692.23693.3493
F51.37652.37663.35662.23692.22082.6687
F61.37652.37663.35662.23692.22082.6687
H72.19421.09852.07043.34932.66872.6687

picture of trifluoroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.237 C1 C2 H7 111.972
C2 C1 F4 111.602 C2 C1 F5 109.455
C2 C1 F6 109.455 O3 C2 H7 124.791
F4 C1 F5 109.348 F4 C1 F6 109.348
F5 C1 F6 107.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability