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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G
 hartrees
Energy at 0K-522.283106
Energy at 298.15K-522.286241
HF Energy-521.487262
Nuclear repulsion energy330.742523
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=FULL/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' 3521 3362 54.66      
2 A' 1738 1659 128.61      
3 A' 1426 1362 24.95      
4 A' 1308 1249 135.80      
5 A' 1236 1180 168.84      
6 A' 1092 1043 297.30      
7 A' 763 729 1.44      
8 A' 643 614 65.49      
9 A' 577 551 20.59      
10 A' 419 400 0.35      
11 A' 382 365 2.44      
12 A' 226 216 1.05      
13 A" 1274 1217 240.21      
14 A" 762 728 20.74      
15 A" 612 584 168.23      
16 A" 489 467 0.16      
17 A" 233 223 0.07      
18 A" 36 34 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 8368.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 7990.1 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=FULL/3-21G
ABC
0.12144 0.08202 0.06729

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 0.584 0.000
C2 -0.312 -0.890 0.000
O3 0.839 -1.642 0.000
O4 -1.466 -1.323 0.000
F5 -1.039 1.357 0.000
F6 0.839 0.886 1.111
F7 0.839 0.886 -1.111
H8 0.601 -2.608 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.52792.34782.46141.36871.37301.37303.2330
C21.52791.37481.23182.36112.39012.39011.9465
O32.34781.37482.32613.53762.76102.76100.9956
O42.46141.23182.32612.71343.37983.37982.4341
F51.36872.36113.53762.71342.23192.23194.2911
F61.37302.39012.76103.37982.23192.22233.6745
F71.37302.39012.76103.37982.23192.22233.6745
H83.23301.94650.99562.43414.29113.67453.6745

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 107.850 C1 C2 O4 125.889
C2 C1 F5 109.074 C2 C1 F6 110.847
C2 C1 F7 110.847 C2 O3 H8 109.365
O3 C2 O4 126.261 F5 C1 F6 108.988
F5 C1 F7 108.988 F6 C1 F7 108.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability