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

using model chemistry: HF/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 HF/CEP-121G
 hartrees
Energy at 0K-114.350184
Energy at 298.15K-114.353560
HF Energy-114.350184
Nuclear repulsion energy183.758217
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 HF/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' 3996 3646 142.92      
2 A' 1922 1754 329.09      
3 A' 1531 1397 83.45      
4 A' 1324 1208 87.05      
5 A' 1276 1165 311.62      
6 A' 1176 1074 368.39      
7 A' 807 737 12.63      
8 A' 672 614 103.02      
9 A' 596 544 19.75      
10 A' 433 395 1.17      
11 A' 403 368 3.81      
12 A' 250 228 1.37      
13 A" 1263 1153 304.57      
14 A" 815 744 49.35      
15 A" 588 536 229.85      
16 A" 503 459 1.13      
17 A" 262 239 0.28      
18 A" 51 46 2.11      

Unscaled Zero Point Vibrational Energy (zpe) 8934.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 8152.8 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 HF/CEP-121G
ABC
0.12472 0.08142 0.06759

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.081 0.583 0.000
C2 -0.294 -0.912 0.000
O3 0.819 -1.666 0.000
O4 -1.433 -1.315 0.000
F5 -1.027 1.367 0.000
F6 0.819 0.896 1.105
F7 0.819 0.896 -1.105
H8 0.676 -2.612 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.54212.36702.42851.35721.36511.36513.2498
C21.54211.34471.20762.39392.39432.39431.9570
O32.36701.34472.27923.55032.79012.79010.9567
O42.42851.20762.27922.71283.34433.34432.4754
F51.35722.39393.55032.71282.20232.20234.3276
F61.36512.39432.79013.34432.20232.21003.6806
F71.36512.39432.79013.34432.20232.21003.6806
H83.24981.95700.95672.47544.32763.68063.6806

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 109.969 C1 C2 O4 123.603
C2 C1 F5 111.159 C2 C1 F6 110.739
C2 C1 F7 110.739 C2 O3 H8 115.463
O3 C2 O4 126.428 F5 C1 F6 107.997
F5 C1 F7 107.997 F6 C1 F7 108.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.601      
2 C 0.247      
3 O -0.474      
4 O -0.195      
5 F -0.201      
6 F -0.216      
7 F -0.216      
8 H 0.454      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.013 -2.832 0.000 3.008
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.855 -3.329 0.000
y -3.329 -31.606 0.000
z 0.000 0.000 -38.789
Traceless
 xyz
x -10.657 -3.329 0.000
y -3.329 10.716 0.000
z 0.000 0.000 -0.059
Polar
3z2-r2-0.118
x2-y2-14.249
xy-3.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.586 0.078 0.000
y 0.078 3.804 0.000
z 0.000 0.000 2.911


<r2> (average value of r2) Å2
<r2> 138.113
(<r2>)1/2 11.752