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

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-526.132033
Energy at 298.15K-526.134955
HF Energy-526.132033
Nuclear repulsion energy327.853699
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
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' 3482 3434 43.88      
2 A' 1722 1699 184.22      
3 A' 1366 1347 18.58      
4 A' 1193 1177 63.31      
5 A' 1139 1124 221.77      
6 A' 1055 1041 275.89      
7 A' 734 724 7.95      
8 A' 613 604 62.62      
9 A' 540 533 11.98      
10 A' 390 385 0.27      
11 A' 374 369 2.05      
12 A' 229 226 1.26      
13 A" 1119 1103 252.00      
14 A" 731 721 42.20      
15 A" 606 597 134.80      
16 A" 453 446 0.04      
17 A" 225 222 0.00      
18 A" 26 26 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 7998.6 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 7888.2 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 PBEPBE/6-31G
ABC
0.11938 0.08030 0.06632

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.085 0.582 0.000
C2 -0.299 -0.902 0.000
O3 0.841 -1.666 0.000
O4 -1.459 -1.327 0.000
F5 -1.056 1.368 0.000
F6 0.841 0.899 1.130
F7 0.841 0.899 -1.130
H8 0.604 -2.631 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53242.37112.45461.38541.39571.39573.2540
C21.53241.37241.23492.39282.41192.41191.9507
O32.37111.37242.32443.57792.80192.80190.9935
O42.45461.23492.32442.72513.39373.39372.4405
F51.38542.39283.57792.72512.25692.25694.3297
F61.39572.41192.80193.39372.25692.25903.7130
F71.39572.41192.80193.39372.25692.25903.7130
H83.25401.95070.99352.44054.32973.71303.7130

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 109.302 C1 C2 O4 124.650
C2 C1 F5 110.079 C2 C1 F6 110.831
C2 C1 F7 110.831 C2 O3 H8 110.045
O3 C2 O4 126.049 F5 C1 F6 108.485
F5 C1 F7 108.485 F6 C1 F7 108.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.680      
2 C 0.378      
3 O -0.481      
4 O -0.317      
5 F -0.220      
6 F -0.222      
7 F -0.222      
8 H 0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.873 -2.364 0.000 2.520
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.769 -2.875 0.000
y -2.875 -30.352 0.000
z 0.000 0.000 -37.090
Traceless
 xyz
x -9.048 -2.875 0.000
y -2.875 9.577 0.000
z 0.000 0.000 -0.530
Polar
3z2-r2-1.060
x2-y2-12.417
xy-2.875
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.867 -0.093 0.000
y -0.093 4.378 0.000
z 0.000 0.000 2.838


<r2> (average value of r2) Å2
<r2> 173.788
(<r2>)1/2 13.183