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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-526.361320
Energy at 298.15K-526.364509
HF Energy-525.993320
Nuclear repulsion energy336.030569
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 B2PLYP/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' 3698 3510 84.16      
2 A' 1876 1781 233.66      
3 A' 1458 1384 35.11      
4 A' 1305 1238 113.06      
5 A' 1248 1185 234.29      
6 A' 1164 1105 310.31      
7 A' 803 762 3.88      
8 A' 664 630 75.02      
9 A' 589 559 9.21      
10 A' 424 403 0.05      
11 A' 393 373 2.20      
12 A' 238 226 1.25      
13 A" 1238 1175 278.55      
14 A" 788 748 44.79      
15 A" 623 591 107.53      
16 A" 502 476 0.65      
17 A" 239 227 0.06      
18 A" 24 23 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 8635.9 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8197.2 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 B2PLYP/6-31G*
ABC
0.12732 0.08322 0.06887

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 0.591 0.000
C2 -0.294 -0.898 0.000
O3 0.817 -1.651 0.000
O4 -1.430 -1.302 0.000
F5 -1.009 1.349 0.000
F6 0.817 0.884 1.090
F7 0.817 0.884 -1.090
H8 0.526 -2.583 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53712.35792.42671.33311.34331.34333.2047
C21.53711.34211.20582.35762.36532.36531.8745
O32.35791.34212.27363.51192.75902.75900.9766
O42.42671.20582.27362.68443.31883.31882.3381
F51.33312.35763.51192.68442.17672.17674.2212
F61.34332.36532.75903.31882.17672.17913.6458
F71.34332.36532.75903.31882.17672.17913.6458
H83.20471.87450.97662.33814.22123.64583.6458

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 109.768 C1 C2 O4 123.985
C2 C1 F5 110.253 C2 C1 F6 110.224
C2 C1 F7 110.224 C2 O3 H8 106.824
O3 C2 O4 126.247 F5 C1 F6 108.843
F5 C1 F7 108.843 F6 C1 F7 108.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.843      
2 C 0.471      
3 O -0.562      
4 O -0.411      
5 F -0.254      
6 F -0.264      
7 F -0.264      
8 H 0.441      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.970 -1.840 0.000 2.080
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.259 -2.531 0.000
y -2.531 -30.275 0.000
z 0.000 0.000 -36.062
Traceless
 xyz
x -8.091 -2.531 0.000
y -2.531 8.385 0.000
z 0.000 0.000 -0.295
Polar
3z2-r2-0.589
x2-y2-10.984
xy-2.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.622 -0.025 0.000
y -0.025 4.387 0.000
z 0.000 0.000 2.971


<r2> (average value of r2) Å2
<r2> 166.898
(<r2>)1/2 12.919