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

using model chemistry: PBEPBE/3-21G

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/3-21G
 hartrees
Energy at 0K-523.383650
Energy at 298.15K-523.386567
HF Energy-523.383650
Nuclear repulsion energy329.684579
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/3-21G
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' 3346 3316 21.05      
2 A' 1748 1732 150.61      
3 A' 1358 1346 10.67      
4 A' 1232 1221 128.82      
5 A' 1165 1154 151.62      
6 A' 1047 1037 244.50      
7 A' 733 727 2.96      
8 A' 612 607 58.46      
9 A' 545 540 15.54      
10 A' 393 389 0.11      
11 A' 366 363 1.88      
12 A' 215 213 1.21      
13 A" 1189 1178 225.26      
14 A" 742 735 31.18      
15 A" 612 607 124.27      
16 A" 462 458 0.35      
17 A" 215 213 0.00      
18 A" 22 22 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 8000.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 7927.5 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/3-21G
ABC
0.12072 0.08143 0.06690

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.090 0.589 0.000
C2 -0.314 -0.893 0.000
O3 0.842 -1.644 0.000
O4 -1.462 -1.331 0.000
F5 -1.047 1.358 0.000
F6 0.842 0.891 1.116
F7 0.842 0.891 -1.116
H8 0.578 -2.619 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53592.35562.46891.37291.37911.37913.2446
C21.53591.37831.22862.36712.40082.40081.9429
O32.35561.37832.32483.54642.76942.76941.0103
O42.46891.22862.32482.72083.38973.38972.4123
F51.37292.36713.54642.72082.24312.24314.2959
F61.37912.40082.76943.38972.24312.23243.6924
F71.37912.40082.76943.38972.24312.23243.6924
H83.24461.94291.01032.41234.29593.69243.6924

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 107.740 C1 C2 O4 126.160
C2 C1 F5 108.802 C2 C1 F6 110.777
C2 C1 F7 110.777 C2 O3 H8 107.866
O3 C2 O4 126.100 F5 C1 F6 109.194
F5 C1 F7 109.194 F6 C1 F7 108.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.708      
2 C 0.488      
3 O -0.491      
4 O -0.403      
5 F -0.227      
6 F -0.226      
7 F -0.226      
8 H 0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.825 -2.022 0.000 2.184
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.304 -2.566 0.000
y -2.566 -29.777 0.000
z 0.000 0.000 -36.118
Traceless
 xyz
x -8.356 -2.566 0.000
y -2.566 8.933 0.000
z 0.000 0.000 -0.577
Polar
3z2-r2-1.154
x2-y2-11.527
xy-2.566
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.244 -0.102 0.000
y -0.102 4.075 0.000
z 0.000 0.000 2.405


<r2> (average value of r2) Å2
<r2> 171.497
(<r2>)1/2 13.096