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

using model chemistry: QCISD(T)/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(T)/6-31G*
 hartrees
Energy at 0K-525.529260
Energy at 298.15K-525.532473
HF Energy-524.366970
Nuclear repulsion energy335.330245
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(T)/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' 3668 3519        
2 A' 1880 1804        
3 A' 1472 1412        
4 A' 1319 1265        
5 A' 1262 1211        
6 A' 1163 1116        
7 A' 802 769        
8 A' 661 634        
9 A' 588 564        
10 A' 423 406        
11 A' 394 378        
12 A' 239 229        
13 A" 1258 1207        
14 A" 779 748        
15 A" 615 590        
16 A" 500 480        
17 A" 240 231        
18 A" 37 36        

Unscaled Zero Point Vibrational Energy (zpe) 8651.0 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 8298.9 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 QCISD(T)/6-31G*
ABC
0.12643 0.08313 0.06870

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 0.590 0.000
C2 -0.297 -0.897 0.000
O3 0.820 -1.652 0.000
O4 -1.438 -1.299 0.000
F5 -1.010 1.354 0.000
F6 0.820 0.880 1.093
F7 0.820 0.880 -1.093
H8 0.525 -2.587 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53632.35852.42901.33741.34661.34663.2076
C21.53631.34771.21022.36132.36632.36631.8796
O32.35851.34772.28513.51892.75792.75790.9809
O42.42901.21022.28512.68783.32313.32312.3478
F51.33742.36133.51892.68782.18302.18304.2298
F61.34662.36632.75793.32312.18302.18523.6478
F71.34662.36632.75793.32312.18302.18523.6478
H83.20761.87960.98092.34784.22983.64783.6478

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 109.559 C1 C2 O4 123.930
C2 C1 F5 110.316 C2 C1 F6 110.160
C2 C1 F7 110.160 C2 O3 H8 106.575
O3 C2 O4 126.512 F5 C1 F6 108.849
F5 C1 F7 108.849 F6 C1 F7 108.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability