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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-523.894262
Energy at 298.15K-523.897329
HF Energy-523.894262
Nuclear repulsion energy332.278107
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 B3LYP/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' 3483 3350 38.95      
2 A' 1811 1743 174.31      
3 A' 1405 1351 17.43      
4 A' 1281 1233 132.76      
5 A' 1212 1165 169.39      
6 A' 1093 1052 277.02      
7 A' 761 732 3.40      
8 A' 637 613 67.19      
9 A' 566 545 16.76      
10 A' 410 394 0.12      
11 A' 378 364 2.07      
12 A' 224 215 1.31      
13 A" 1238 1191 233.68      
14 A" 768 739 29.75      
15 A" 612 589 148.04      
16 A" 480 462 0.35      
17 A" 227 218 0.02      
18 A" 31 30 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 8308.2 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 7992.5 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 B3LYP/3-21G*
ABC
0.12285 0.08254 0.06788

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.087 0.585 0.000
C2 -0.309 -0.890 0.000
O3 0.833 -1.636 0.000
O4 -1.447 -1.320 0.000
F5 -1.039 1.350 0.000
F6 0.833 0.886 1.107
F7 0.833 0.886 -1.107
H8 0.600 -2.606 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.52722.34312.44581.36191.36801.36803.2323
C21.52721.36381.21652.35612.38352.38351.9422
O32.34311.36382.30133.52462.75412.75410.9975
O42.44581.21652.30132.70073.35943.35942.4175
F51.36192.35613.52462.70072.22412.22414.2826
F61.36802.38352.75413.35942.22412.21403.6705
F71.36802.38352.75413.35942.22412.21403.6705
H83.23231.94220.99752.41754.28263.67053.6705

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 108.149 C1 C2 O4 125.731
C2 C1 F5 109.138 C2 C1 F6 110.701
C2 C1 F7 110.701 C2 O3 H8 109.695
O3 C2 O4 126.120 F5 C1 F6 109.117
F5 C1 F7 109.117 F6 C1 F7 108.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.815      
2 C 0.551      
3 O -0.536      
4 O -0.430      
5 F -0.262      
6 F -0.262      
7 F -0.262      
8 H 0.387      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.816 -2.145 0.000 2.295
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.730 -2.648 0.000
y -2.648 -29.891 0.000
z 0.000 0.000 -36.181
Traceless
 xyz
x -8.694 -2.648 0.000
y -2.648 9.065 0.000
z 0.000 0.000 -0.371
Polar
3z2-r2-0.741
x2-y2-11.839
xy-2.648
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.042 -0.095 0.000
y -0.095 3.748 0.000
z 0.000 0.000 2.272


<r2> (average value of r2) Å2
<r2> 169.453
(<r2>)1/2 13.017