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

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-522.151615
Energy at 298.15K-522.154908
HF Energy-521.493917
Nuclear repulsion energy334.544132
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 CID/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' 3717 3463 78.29      
2 A' 1916 1785 191.87      
3 A' 1488 1387 38.36      
4 A' 1385 1291 148.33      
5 A' 1294 1206 191.93      
6 A' 1163 1083 326.56      
7 A' 805 750 3.48      
8 A' 674 628 83.87      
9 A' 599 558 21.82      
10 A' 437 407 0.36      
11 A' 397 370 2.73      
12 A' 233 217 1.30      
13 A" 1348 1256 249.77      
14 A" 803 748 26.52      
15 A" 602 561 196.02      
16 A" 506 472 1.35      
17 A" 242 226 0.16      
18 A" 42 39 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 8825.2 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 8221.5 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 CID/3-21G
ABC
0.12465 0.08355 0.06875

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.086 0.582 0.000
C2 -0.306 -0.887 0.000
O3 0.825 -1.632 0.000
O4 -1.437 -1.307 0.000
F5 -1.029 1.347 0.000
F6 0.825 0.878 1.099
F7 0.825 0.878 -1.099
H8 0.624 -2.592 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.51962.33382.42601.35251.35751.35753.2192
C21.51961.35421.20712.34822.36662.36661.9423
O32.33381.35422.28563.50912.73992.73990.9813
O42.42601.20712.28562.68513.33163.33162.4290
F51.35252.34823.50912.68512.20632.20634.2722
F61.35752.36662.73993.33162.20632.19843.6456
F71.35752.36662.73993.33162.20632.19843.6456
H83.21921.94230.98132.42904.27223.64563.6456

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 108.462 C1 C2 O4 125.284
C2 C1 F5 109.552 C2 C1 F6 110.556
C2 C1 F7 110.556 C2 O3 H8 111.539
O3 C2 O4 126.255 F5 C1 F6 108.999
F5 C1 F7 108.999 F6 C1 F7 108.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability