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 CH3CF3 (Ethane, 1,1,1-trifluoro-)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-376.596073
Energy at 298.15K-376.600790
HF Energy-375.818564
Nuclear repulsion energy201.297288
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3140 2948 0.35      
2 A1 1502 1410 110.12      
3 A1 1357 1274 131.42      
4 A1 862 809 4.91      
5 A1 612 575 25.47      
6 A2 256 240 0.00      
7 E 3235 3037 3.65      
7 E 3235 3037 3.65      
8 E 1544 1449 0.07      
8 E 1544 1449 0.07      
9 E 1339 1257 243.50      
9 E 1339 1257 243.50      
10 E 1029 966 38.49      
10 E 1029 966 38.49      
11 E 546 513 1.84      
11 E 546 513 1.84      
12 E 371 348 0.63      
12 E 371 348 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 11928.9 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 11196.5 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 MP3/6-31G*
ABC
0.18201 0.17276 0.17276

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.473
C2 0.000 0.000 -0.027
H3 0.000 -1.030 1.831
H4 0.892 0.515 1.831
H5 -0.892 0.515 1.831
F6 0.000 1.252 -0.525
F7 -1.085 -0.626 -0.525
F8 1.085 -0.626 -0.525

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.49951.09091.09091.09092.35752.35752.3575
C21.49952.12452.12452.12451.34781.34781.3478
H31.09092.12451.78461.78463.28032.62472.6247
H41.09092.12451.78461.78462.62473.28032.6247
H51.09092.12451.78461.78462.62472.62473.2803
F62.35751.34783.28032.62472.62472.16942.1694
F72.35751.34782.62473.28032.62472.16942.1694
F82.35751.34782.62472.62473.28032.16942.1694

picture of Ethane, 1,1,1-trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 111.672 C1 C2 F7 111.672
C1 C2 F8 111.672 C2 C1 H3 109.182
C2 C1 H4 109.182 C2 C1 H5 109.182
H3 C1 H4 109.759 H3 C1 H5 109.759
H4 C1 H5 109.759 F6 C2 F7 107.183
F6 C2 F8 107.183 F7 C2 F8 107.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability