return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-526.272648
Energy at 298.15K-526.275640
HF Energy-526.272648
Nuclear repulsion energy333.430375
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3558 3499 47.91      
2 A' 1825 1795 226.01      
3 A' 1383 1360 18.88      
4 A' 1243 1223 91.68      
5 A' 1185 1165 235.41      
6 A' 1115 1096 279.12      
7 A' 770 757 3.89      
8 A' 638 628 67.61      
9 A' 562 553 7.85      
10 A' 404 398 0.04      
11 A' 375 369 1.79      
12 A' 225 221 1.27      
13 A" 1171 1152 265.86      
14 A" 757 745 46.54      
15 A" 616 606 83.93      
16 A" 482 474 0.69      
17 A" 223 220 0.00      
18 A" 13 13 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 8272.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 8136.4 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 PBEPBEultrafine/6-31G*
ABC
0.12537 0.08189 0.06782

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 0.597 0.000
C2 -0.296 -0.905 0.000
O3 0.824 -1.663 0.000
O4 -1.438 -1.315 0.000
F5 -1.020 1.355 0.000
F6 0.824 0.893 1.099
F7 0.824 0.893 -1.099
H8 0.513 -2.599 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.55012.37602.44691.34311.35461.35463.2235
C21.55011.35231.21332.37252.38622.38621.8772
O32.37601.35232.28813.53602.78222.78220.9863
O42.44691.21332.28812.70253.34653.34652.3349
F51.34312.37253.53602.70252.19512.19514.2400
F61.35462.38622.78223.34652.19512.19773.6740
F71.35462.38622.78223.34652.19512.19773.6740
H83.22351.87720.98632.33494.24003.67403.6740

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 109.709 C1 C2 O4 124.165
C2 C1 F5 109.962 C2 C1 F6 110.288
C2 C1 F7 110.288 C2 O3 H8 105.716
O3 C2 O4 126.126 F5 C1 F6 108.917
F5 C1 F7 108.917 F6 C1 F7 108.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.705      
2 C 0.422      
3 O -0.505      
4 O -0.391      
5 F -0.210      
6 F -0.219      
7 F -0.219      
8 H 0.417      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.002 -1.707 0.000 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.614 -2.531 0.000
y -2.531 -29.996 0.000
z 0.000 0.000 -35.754
Traceless
 xyz
x -7.739 -2.531 0.000
y -2.531 8.188 0.000
z 0.000 0.000 -0.450
Polar
3z2-r2-0.899
x2-y2-10.618
xy-2.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.808 -0.031 0.000
y -0.031 4.779 0.000
z 0.000 0.000 3.112


<r2> (average value of r2) Å2
<r2> 168.890
(<r2>)1/2 12.996