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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-522.303305
Energy at 298.15K-522.306346
HF Energy-521.484573
Nuclear repulsion energy329.291272
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 MP4/3-21G
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' 3477 3372        
2 A' 1698 1647        
3 A' 1397 1355        
4 A' 1288 1249        
5 A' 1212 1176        
6 A' 1063 1031        
7 A' 742 719        
8 A' 627 608        
9 A' 564 547        
10 A' 410 398        
11 A' 371 359        
12 A' 219 212        
13 A" 1257 1219        
14 A" 741 719        
15 A" 607 589        
16 A" 481 466        
17 A" 228 221        
18 A" 34 33        

Unscaled Zero Point Vibrational Energy (zpe) 8207.7 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 7959.8 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 MP4/3-21G
ABC
0.12051 0.08122 0.06663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.092 0.588 0.000
C2 -0.318 -0.895 0.000
O3 0.843 -1.648 0.000
O4 -1.475 -1.332 0.000
F5 -1.040 1.365 0.000
F6 0.843 0.890 1.115
F7 0.843 0.890 -1.115
H8 0.602 -2.617 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53922.35912.47861.37311.37701.37703.2457
C21.53921.38361.23642.37222.40302.40301.9524
O32.35911.38362.33873.55272.77182.77180.9983
O42.47861.23642.33872.73133.39823.39822.4421
F51.37312.37223.55272.73132.23912.23914.3070
F61.37702.40302.77183.39822.23912.22933.6874
F71.37702.40302.77183.39822.23912.22933.6874
H83.24571.95240.99832.44214.30703.68743.6874

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 107.516 C1 C2 O4 126.162
C2 C1 F5 108.954 C2 C1 F6 110.861
C2 C1 F7 110.861 C2 O3 H8 109.032
O3 C2 O4 126.323 F5 C1 F6 109.016
F5 C1 F7 109.016 F6 C1 F7 108.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability