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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-522.261577
Energy at 298.15K-522.264717
HF Energy-521.490258
Nuclear repulsion energy331.824344
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 CCD/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' 3568 3412 41.96      
2 A' 1836 1756 138.96      
3 A' 1445 1383 22.51      
4 A' 1338 1280 131.45      
5 A' 1253 1199 169.17      
6 A' 1115 1067 309.83      
7 A' 773 740 2.01      
8 A' 651 623 73.38      
9 A' 580 555 20.58      
10 A' 424 405 0.36      
11 A' 384 367 2.54      
12 A' 225 216 0.98      
13 A" 1304 1247 226.75      
14 A" 763 729 16.97      
15 A" 582 557 180.86      
16 A" 491 469 1.55      
17 A" 234 224 0.10      
18 A" 40 38 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 8502.8 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 8133.0 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 CCD/3-21G*
ABC
0.12250 0.08232 0.06766

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 0.586 0.000
C2 -0.310 -0.891 0.000
O3 0.834 -1.645 0.000
O4 -1.453 -1.315 0.000
F5 -1.037 1.356 0.000
F6 0.834 0.885 1.108
F7 0.834 0.885 -1.108
H8 0.605 -2.610 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.52942.35182.44741.36371.36801.36803.2372
C21.52941.37021.21882.36112.38482.38481.9478
O32.35181.37022.31013.53602.76142.76140.9917
O42.44741.21882.31012.70333.36073.36072.4314
F51.36372.36113.53602.70332.22442.22444.2924
F61.36802.38482.76143.36072.22442.21543.6730
F71.36802.38482.76143.36072.22442.21543.6730
H83.23721.94780.99172.43144.29243.67303.6730

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 108.284 C1 C2 O4 125.501
C2 C1 F5 109.267 C2 C1 F6 110.666
C2 C1 F7 110.666 C2 O3 H8 110.085
O3 C2 O4 126.215 F5 C1 F6 109.034
F5 C1 F7 109.034 F6 C1 F7 108.136
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability