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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-115.112314
Energy at 298.15K-115.115195
HF Energy-114.336356
Nuclear repulsion energy178.181770
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 MP2/CEP-121G
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' 3584 3498 85.72      
2 A' 1636 1597 180.83      
3 A' 1368 1335 39.02      
4 A' 1181 1153 57.80      
5 A' 1088 1062 231.11      
6 A' 1023 998 355.04      
7 A' 704 687 11.22      
8 A' 596 581 62.89      
9 A' 526 513 12.76      
10 A' 380 371 0.94      
11 A' 364 355 3.10      
12 A' 227 222 0.89      
13 A" 1060 1034 281.16      
14 A" 704 687 34.79      
15 A" 559 546 169.22      
16 A" 443 432 0.06      
17 A" 234 228 0.10      
18 A" 41 40 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 7858.3 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 7669.7 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 MP2/CEP-121G
ABC
0.11608 0.07737 0.06398

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.087 0.585 0.000
C2 -0.314 -0.928 0.000
O3 0.852 -1.693 0.000
O4 -1.493 -1.353 0.000
F5 -1.057 1.407 0.000
F6 0.852 0.913 1.145
F7 0.852 0.913 -1.145
H8 0.655 -2.662 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.56492.40342.50011.40791.41601.41603.2967
C21.56491.39451.25362.45002.46172.46171.9866
O32.40341.39452.36963.64052.84692.84690.9888
O42.50011.25362.36962.79403.45643.45642.5157
F51.40792.45003.64052.79402.28002.28004.4144
F61.41602.46172.84693.45642.28002.29013.7596
F71.41602.46172.84693.45642.28002.29013.7596
H83.29671.98660.98882.51574.41443.75963.7596

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 108.470 C1 C2 O4 124.638
C2 C1 F5 110.893 C2 C1 F6 111.246
C2 C1 F7 111.246 C2 O3 H8 111.798
O3 C2 O4 126.891 F5 C1 F6 107.683
F5 C1 F7 107.683 F6 C1 F7 107.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability