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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-525.476709
Energy at 298.15K-525.480007
HF Energy-524.370375
Nuclear repulsion energy337.022818
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 MP3/6-31G*
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' 3767 3536 98.51      
2 A' 1967 1846 252.37      
3 A' 1511 1418 49.96      
4 A' 1356 1273 143.28      
5 A' 1292 1212 208.46      
6 A' 1206 1132 334.03      
7 A' 825 775 4.85      
8 A' 681 639 82.85      
9 A' 603 566 10.55      
10 A' 435 408 0.13      
11 A' 403 378 2.48      
12 A' 244 229 1.14      
13 A" 1297 1217 279.24      
14 A" 803 754 39.01      
15 A" 614 576 128.42      
16 A" 512 480 1.37      
17 A" 246 231 0.11      
18 A" 35 33 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 8897.6 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 8351.3 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 MP3/6-31G*
ABC
0.12803 0.08373 0.06930

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.086 0.590 0.000
C2 -0.293 -0.896 0.000
O3 0.814 -1.648 0.000
O4 -1.424 -1.294 0.000
F5 -1.007 1.347 0.000
F6 0.814 0.880 1.087
F7 0.814 0.880 -1.087
H8 0.531 -2.581 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53382.35372.41511.33011.33941.33943.2023
C21.53381.33811.19942.35462.35772.35771.8756
O32.35371.33812.26573.50582.75172.75170.9748
O42.41511.19942.26572.67463.30383.30382.3404
F51.33012.35463.50582.67462.17142.17144.2190
F61.33942.35772.75173.30382.17142.17343.6385
F71.33942.35772.75173.30382.17142.17343.6385
H83.20231.87560.97482.34044.21903.63853.6385

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 109.896 C1 C2 O4 123.704
C2 C1 F5 110.401 C2 C1 F6 110.106
C2 C1 F7 110.106 C2 O3 H8 107.330
O3 C2 O4 126.400 F5 C1 F6 108.863
F5 C1 F7 108.863 F6 C1 F7 108.457
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