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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-525.832595
Energy at 298.15K-525.835926
HF Energy-524.412540
Nuclear repulsion energy338.840132
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/6-31G(2df,p)
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' 3831 3629 92.46      
2 A' 1918 1817 235.61      
3 A' 1483 1405 42.12      
4 A' 1344 1273 146.02      
5 A' 1274 1207 177.07      
6 A' 1181 1119 294.15      
7 A' 825 782 1.99      
8 A' 679 643 73.79      
9 A' 605 573 10.64      
10 A' 436 413 0.05      
11 A' 398 377 2.48      
12 A' 239 226 1.19      
13 A" 1282 1214 249.71      
14 A" 812 769 34.29      
15 A" 613 581 100.88      
16 A" 519 492 2.04      
17 A" 247 234 0.10      
18 A" 41 39 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 8862.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 8396.2 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/6-31G(2df,p)
ABC
0.12972 0.08447 0.06982

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 0.593 0.000
C2 -0.298 -0.896 0.000
O3 0.811 -1.639 0.000
O4 -1.424 -1.294 0.000
F5 -0.994 1.343 0.000
F6 0.811 0.875 1.077
F7 0.811 0.875 -1.077
H8 0.527 -2.562 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53742.34602.41761.31691.32711.32713.1854
C21.53741.33471.19492.34442.35022.35021.8598
O32.34601.33472.26153.48592.73542.73540.9654
O42.41761.19492.26152.67143.29513.29512.3280
F51.31692.34443.48592.67142.15292.15294.1913
F61.32712.35022.73543.29512.15292.15333.6134
F71.32712.35022.73543.29512.15292.15333.6134
H83.18541.85980.96542.32804.19133.61343.6134

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 109.334 C1 C2 O4 123.986
C2 C1 F5 110.204 C2 C1 F6 110.044
C2 C1 F7 110.044 C2 O3 H8 106.814
O3 C2 O4 126.680 F5 C1 F6 109.032
F5 C1 F7 109.032 F6 C1 F7 108.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability