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

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-524.276679
Energy at 298.15K-524.280036
HF Energy-524.276679
Nuclear repulsion energy333.983755
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 HF/SDD
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' 4025 3625 177.80      
2 A' 1952 1757 357.46      
3 A' 1530 1377 77.32      
4 A' 1320 1188 78.09      
5 A' 1275 1148 334.24      
6 A' 1186 1067 351.58      
7 A' 814 733 14.91      
8 A' 679 611 103.62      
9 A' 603 543 20.34      
10 A' 435 392 1.57      
11 A' 407 366 3.72      
12 A' 251 226 1.63      
13 A" 1256 1130 305.68      
14 A" 832 749 55.64      
15 A" 595 536 241.14      
16 A" 504 453 0.88      
17 A" 264 238 0.26      
18 A" 52 47 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 8989.3 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 8093.9 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 HF/SDD
ABC
0.12532 0.08230 0.06828

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.079 0.578 0.000
C2 -0.294 -0.908 0.000
O3 0.817 -1.651 0.000
O4 -1.426 -1.309 0.000
F5 -1.026 1.362 0.000
F6 0.817 0.889 1.103
F7 0.817 0.889 -1.103
H8 0.693 -2.600 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53182.34792.41321.35531.36321.36323.2368
C21.53181.33661.20052.38492.38362.38361.9594
O32.34791.33662.26833.53212.77002.77000.9571
O42.41321.20052.26832.70043.32843.32842.4813
F51.35532.38493.53212.70042.19932.19934.3192
F61.36322.38362.77003.32842.19932.20623.6622
F71.36322.38362.77003.32842.19932.20623.6622
H83.23681.95940.95712.48134.31923.66223.6622

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 109.689 C1 C2 O4 123.619
C2 C1 F5 111.245 C2 C1 F6 110.717
C2 C1 F7 110.717 C2 O3 H8 116.373
O3 C2 O4 126.693 F5 C1 F6 107.999
F5 C1 F7 107.999 F6 C1 F7 108.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.780      
2 C 0.460      
3 O -0.579      
4 O -0.312      
5 F -0.265      
6 F -0.277      
7 F -0.277      
8 H 0.472      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.014 -2.925 0.000 3.095
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.902 -3.435 0.000
y -3.435 -31.657 0.000
z 0.000 0.000 -38.846
Traceless
 xyz
x -10.651 -3.435 0.000
y -3.435 10.717 0.000
z 0.000 0.000 -0.066
Polar
3z2-r2-0.132
x2-y2-14.245
xy-3.435
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.412 0.074 0.000
y 0.074 3.594 0.000
z 0.000 0.000 2.661


<r2> (average value of r2) Å2
<r2> 170.424
(<r2>)1/2 13.055