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: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-525.508032
Energy at 298.15K-525.511276
HF Energy-524.367610
Nuclear repulsion energy336.016796
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 MP2=FULL/6-31G*
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' 3689 3475 102.99      
2 A' 1877 1768 206.36      
3 A' 1483 1397 46.02      
4 A' 1317 1241 137.18      
5 A' 1259 1187 207.91      
6 A' 1170 1103 316.29      
7 A' 809 762 4.07      
8 A' 666 628 74.00      
9 A' 593 559 10.07      
10 A' 427 402 0.09      
11 A' 397 374 2.42      
12 A' 242 228 1.12      
13 A" 1254 1182 283.24      
14 A" 792 746 40.26      
15 A" 628 592 118.37      
16 A" 506 476 0.57      
17 A" 244 230 0.06      
18 A" 33 32 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 8693.0 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 8190.6 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 MP2=FULL/6-31G*
ABC
0.12679 0.08359 0.06904

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 0.592 0.000
C2 -0.296 -0.897 0.000
O3 0.819 -1.640 0.000
O4 -1.438 -1.291 0.000
F5 -1.010 1.342 0.000
F6 0.819 0.877 1.092
F7 0.819 0.877 -1.092
H8 0.548 -2.579 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 F5 F6 F7 H8
C11.53852.34802.42591.33201.34241.34243.2036
C21.53851.33981.20802.34982.36202.36201.8818
O32.34801.33982.28323.49812.74322.74320.9766
O42.42591.20802.28322.66783.31413.31412.3667
F51.33202.34983.49812.66782.18012.18014.2189
F61.34242.36202.74323.31412.18012.18313.6335
F71.34242.36202.74323.31412.18012.18313.6335
H83.20361.88180.97662.36674.21893.63353.6335

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 109.129 C1 C2 O4 123.632
C2 C1 F5 109.681 C2 C1 F6 109.960
C2 C1 F7 109.960 C2 O3 H8 107.628
O3 C2 O4 127.240 F5 C1 F6 109.206
F5 C1 F7 109.206 F6 C1 F7 108.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability