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 CHF3 (Methane, trifluoro-)

using model chemistry: MP2/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-337.846364
Energy at 298.15K 
HF Energy-336.911255
Nuclear repulsion energy133.581054
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/aug-cc-pVTZ
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 3200 3049 22.03 67.05 0.16 0.28
2 A1 1155 1100 93.82 6.41 0.02 0.03
3 A1 703 670 13.00 2.05 0.19 0.32
4 E 1413 1347 43.07 1.55 0.75 0.86
4 E 1413 1347 43.07 1.55 0.75 0.86
5 E 1176 1120 296.61 2.01 0.75 0.86
5 E 1176 1120 296.61 2.01 0.75 0.86
6 E 509 485 2.36 0.75 0.75 0.86
6 E 509 485 2.36 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5626.4 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 5361.4 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/aug-cc-pVTZ
ABC
0.34440 0.34440 0.18890

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.340
H2 0.000 0.000 1.426
F3 0.000 1.251 -0.128
F4 1.084 -0.626 -0.128
F5 -1.084 -0.626 -0.128

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.08561.33611.33611.3361
H21.08561.99511.99511.9951
F31.33611.99512.16732.1673
F41.33611.99512.16732.1673
F51.33611.99512.16732.1673

picture of Methane, trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.517 H2 C1 F4 110.517
H2 C1 F5 110.517 F3 C1 F4 108.405
F3 C1 F5 108.405 F4 C1 F5 108.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability