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All results from a given calculation for CH3CF3 (Ethane, 1,1,1-trifluoro-)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-376.587306
Energy at 298.15K-376.591998
HF Energy-375.817616
Nuclear repulsion energy200.695554
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 MP2/6-31G*
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 3145 2966 0.23      
2 A1 1496 1411 99.64      
3 A1 1344 1267 137.86      
4 A1 849 801 5.87      
5 A1 605 571 23.16      
6 A2 264 249 0.00      
7 E 3250 3065 2.54      
7 E 3250 3065 2.54      
8 E 1548 1460 0.35      
8 E 1548 1460 0.35      
9 E 1310 1235 233.06      
9 E 1310 1235 233.06      
10 E 1017 959 49.42      
10 E 1017 959 49.42      
11 E 538 507 1.34      
11 E 538 507 1.34      
12 E 367 346 0.62      
12 E 367 346 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 11880.9 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 11203.7 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 MP2/6-31G*
ABC
0.18031 0.17205 0.17205

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.498
C2 0.000 0.000 0.011
H3 0.000 -0.973 1.835
H4 0.843 0.487 1.835
H5 -0.843 0.487 1.835
F6 0.000 1.571 -0.539
F7 -1.360 -0.785 -0.539
F8 1.360 -0.785 -0.539

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.48711.02971.02971.02972.57262.57262.5726
C21.48712.06702.06702.06701.66441.66441.6644
H31.02972.06701.68561.68563.47962.74252.7425
H41.02972.06701.68561.68562.74253.47962.7425
H51.02972.06701.68561.68562.74252.74253.4796
F62.57261.66443.47962.74252.74252.72072.7207
F72.57261.66442.74253.47962.74252.72072.7207
F82.57261.66442.74252.74253.47962.72072.7207

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 109.307 C1 C2 F7 109.307
C1 C2 F8 109.307 C2 C1 H3 109.077
C2 C1 H4 109.077 C2 C1 H5 109.077
H3 C1 H4 109.862 H3 C1 H5 109.862
H4 C1 H5 109.862 F6 C2 F7 109.635
F6 C2 F8 109.635 F7 C2 F8 109.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability