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

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-526.309714
Energy at 298.15K-526.312761
HF Energy-526.309714
Nuclear repulsion energy334.724147
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 PBEPBE/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' 3624 3587 52.95      
2 A' 1821 1803 221.05      
3 A' 1371 1357 16.87      
4 A' 1231 1218 92.42      
5 A' 1172 1160 215.66      
6 A' 1104 1093 257.74      
7 A' 773 765 2.34      
8 A' 639 633 64.75      
9 A' 566 560 8.23      
10 A' 408 404 0.05      
11 A' 374 370 1.94      
12 A' 224 222 1.28      
13 A" 1154 1143 239.92      
14 A" 763 755 38.39      
15 A" 608 602 74.11      
16 A" 488 483 1.05      
17 A" 225 222 0.00      
18 A" 23 23 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 8284.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 8199.1 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 PBEPBE/6-31G(2df,p)
ABC
0.12656 0.08240 0.06820

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 0.598 0.000
C2 -0.300 -0.906 0.000
O3 0.821 -1.658 0.000
O4 -1.436 -1.312 0.000
F5 -1.012 1.352 0.000
F6 0.821 0.890 1.092
F7 0.821 0.890 -1.092
H8 0.518 -2.589 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.55332.37142.44451.33411.34641.34643.2160
C21.55331.34921.20702.36742.38172.38171.8713
O32.37141.34922.28313.52352.77192.77190.9797
O42.44451.20702.28312.69783.33703.33702.3340
F51.33412.36743.52352.69782.18242.18244.2275
F61.34642.38172.77193.33702.18242.18393.6593
F71.34642.38172.77193.33702.18242.18393.6593
H83.21601.87130.97972.33404.22753.65933.6593

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 109.377 C1 C2 O4 124.168
C2 C1 F5 109.919 C2 C1 F6 110.240
C2 C1 F7 110.240 C2 O3 H8 105.842
O3 C2 O4 126.455 F5 C1 F6 109.009
F5 C1 F7 109.009 F6 C1 F7 108.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.162      
2 C 0.239      
3 O -0.326      
4 O -0.285      
5 F -0.019      
6 F -0.041      
7 F -0.041      
8 H 0.311      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.047 -1.644 0.000 1.949
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.296 -2.522 0.000
y -2.522 -30.138 0.000
z 0.000 0.000 -35.681
Traceless
 xyz
x -7.386 -2.522 0.000
y -2.522 7.850 0.000
z 0.000 0.000 -0.464
Polar
3z2-r2-0.929
x2-y2-10.158
xy-2.522
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.129 -0.034 0.000
y -0.034 5.302 0.000
z 0.000 0.000 3.636


<r2> (average value of r2) Å2
<r2> 167.871
(<r2>)1/2 12.957