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All results from a given calculation for CF3COOH (trifluoroacetic acid)

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-525.291803
Energy at 298.15K-525.295239
HF Energy-524.373187
Nuclear repulsion energy339.522736
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 CISD/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' 3903 3613 128.31      
2 A' 2026 1876 301.61      
3 A' 1561 1445 64.51      
4 A' 1400 1296 184.29      
5 A' 1328 1229 201.95      
6 A' 1247 1155 348.70      
7 A' 856 792 5.19      
8 A' 704 652 90.25      
9 A' 623 577 11.17      
10 A' 450 416 0.17      
11 A' 416 385 2.63      
12 A' 253 234 1.34      
13 A" 1341 1241 300.27      
14 A" 843 781 48.21      
15 A" 631 584 134.66      
16 A" 530 491 1.55      
17 A" 256 237 0.18      
18 A" 40 37 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 9202.8 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 8519.9 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 CISD/6-31G*
ABC
0.13022 0.08477 0.07023

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.085 0.588 0.000
C2 -0.290 -0.893 0.000
O3 0.806 -1.638 0.000
O4 -1.412 -1.289 0.000
F5 -0.999 1.339 0.000
F6 0.806 0.875 1.078
F7 0.806 0.875 -1.078
H8 0.540 -2.566 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.52772.34022.40091.31871.32811.32813.1865
C21.52771.32571.18982.34142.34282.34281.8675
O32.34021.32572.24553.48162.73472.73470.9650
O42.40091.18982.24552.65973.28083.28082.3324
F51.31872.34143.48162.65972.15312.15314.1968
F61.32812.34282.73473.28082.15312.15573.6155
F71.32812.34282.73473.28082.15312.15573.6155
H83.18651.86750.96502.33244.19683.61553.6155

picture of trifluoroacetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 110.000 C1 C2 O4 123.659
C2 C1 F5 110.472 C2 C1 F6 110.045
C2 C1 F7 110.045 C2 O3 H8 108.194
O3 C2 O4 126.341 F5 C1 F6 108.870
F5 C1 F7 108.870 F6 C1 F7 108.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability