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

using model chemistry: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-526.354313
Energy at 298.15K-526.357568
HF Energy-526.354313
Nuclear repulsion energy338.635915
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 HSEh1PBE/6-31G(2df,p)
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' 3797 3637 84.89      
2 A' 1917 1836 258.54      
3 A' 1452 1391 31.78      
4 A' 1308 1253 143.65      
5 A' 1241 1188 190.53      
6 A' 1172 1123 281.26      
7 A' 817 783 2.55      
8 A' 673 644 74.70      
9 A' 596 571 9.65      
10 A' 430 411 0.01      
11 A' 392 375 2.27      
12 A' 234 224 1.35      
13 A" 1240 1187 252.62      
14 A" 806 772 38.94      
15 A" 619 592 90.90      
16 A" 512 490 1.45      
17 A" 238 228 0.03      
18 A" 31 30 1.49      

Unscaled Zero Point Vibrational Energy (zpe) 8736.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8367.1 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 HSEh1PBE/6-31G(2df,p)
ABC
0.12987 0.08412 0.06968

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 0.594 0.000
C2 -0.293 -0.899 0.000
O3 0.809 -1.643 0.000
O4 -1.418 -1.298 0.000
F5 -1.000 1.338 0.000
F6 0.809 0.882 1.078
F7 0.809 0.882 -1.078
H8 0.526 -2.568 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.54152.35132.41801.31721.32861.32863.1928
C21.54151.33021.19292.34612.35612.35611.8593
O32.35131.33022.25353.48722.74602.74600.9671
O42.41801.19292.25352.66893.29773.29772.3221
F51.31722.34613.48722.66892.15432.15434.1936
F61.32862.35612.74603.29772.15432.15533.6259
F71.32862.35612.74603.29772.15432.15533.6259
H83.19281.85930.96712.32214.19363.62593.6259

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 109.706 C1 C2 O4 123.832
C2 C1 F5 110.063 C2 C1 F6 110.137
C2 C1 F7 110.137 C2 O3 H8 106.998
O3 C2 O4 126.461 F5 C1 F6 109.029
F5 C1 F7 109.029 F6 C1 F7 108.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.287      
2 C 0.304      
3 O -0.377      
4 O -0.324      
5 F -0.058      
6 F -0.082      
7 F -0.082      
8 H 0.333      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.098 -1.708 0.000 2.031
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.490 -2.611 0.000
y -2.611 -29.992 0.000
z 0.000 0.000 -35.628
Traceless
 xyz
x -7.680 -2.611 0.000
y -2.611 8.067 0.000
z 0.000 0.000 -0.387
Polar
3z2-r2-0.774
x2-y2-10.498
xy-2.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.876 -0.012 0.000
y -0.012 4.920 0.000
z 0.000 0.000 3.486


<r2> (average value of r2) Å2
<r2> 164.710
(<r2>)1/2 12.834