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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-524.821096
Energy at 298.15K-524.824378
HF Energy-524.156207
Nuclear repulsion energy331.555039
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' 3811 3574 115.16      
2 A' 1870 1753 231.04      
3 A' 1498 1404 49.37      
4 A' 1322 1240 101.45      
5 A' 1267 1189 242.13      
6 A' 1161 1089 333.64      
7 A' 798 748 9.39      
8 A' 665 623 85.80      
9 A' 586 550 17.53      
10 A' 427 400 1.01      
11 A' 403 378 2.88      
12 A' 250 235 1.22      
13 A" 1267 1188 266.81      
14 A" 785 736 36.15      
15 A" 598 560 214.52      
16 A" 490 460 0.02      
17 A" 253 237 0.19      
18 A" 48 45 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 8748.8 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 8204.6 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
0.12247 0.08179 0.06768

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 0.082 0.579 0.000
C2 -0.295 -0.898 0.000
O3 0.827 -1.655 0.000
O4 -1.439 -1.312 0.000
F5 -1.041 1.363 0.000
F6 0.827 0.888 1.116
F7 0.827 0.888 -1.116
H8 0.651 -2.608 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.52482.35482.42671.36951.37731.37733.2378
C21.52481.35351.21662.38152.38682.38681.9542
O32.35481.35352.29263.54942.77692.77690.9698
O42.42671.21662.29262.70443.34993.34992.4599
F51.36952.38153.54942.70442.22742.22744.3169
F61.37732.38682.77693.34992.22742.23253.6744
F71.37732.38682.77693.34992.22742.23253.6744
H83.23781.95420.96982.45994.31693.67443.6744

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 109.653 C1 C2 O4 124.171
C2 C1 F5 110.620 C2 C1 F6 110.557
C2 C1 F7 110.557 C2 O3 H8 113.494
O3 C2 O4 126.176 F5 C1 F6 108.374
F5 C1 F7 108.374 F6 C1 F7 108.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability