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: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-376.659916
Energy at 298.15K-376.664579
HF Energy-375.836175
Nuclear repulsion energy200.352811
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/6-31+G**
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 3161 2968 0.57      
2 A1 1484 1394 85.15      
3 A1 1325 1244 141.02      
4 A1 834 784 8.38      
5 A1 598 562 23.82      
6 A2 254 239 0.00      
7 E 3276 3076 1.63      
7 E 3276 3076 1.63      
8 E 1534 1441 0.86      
8 E 1534 1441 0.86      
9 E 1254 1178 242.32      
9 E 1254 1178 242.32      
10 E 997 936 79.37      
10 E 997 936 79.37      
11 E 531 499 1.09      
11 E 531 499 1.09      
12 E 367 344 0.64      
12 E 367 344 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 11787.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 11070.4 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=FULL/6-31+G**
ABC
0.17975 0.17140 0.17140

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.475
C2 0.000 0.000 -0.019
H3 0.000 -1.026 1.828
H4 0.889 0.513 1.828
H5 -0.889 0.513 1.828
F6 0.000 1.261 -0.527
F7 -1.092 -0.630 -0.527
F8 1.092 -0.630 -0.527

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.49491.08521.08521.08522.36612.36612.3661
C21.49492.11362.11362.11361.35901.35901.3590
H31.08522.11361.77741.77743.28282.62592.6259
H41.08522.11361.77741.77742.62593.28282.6259
H51.08522.11361.77741.77742.62592.62593.2828
F62.36611.35903.28282.62592.62592.18372.1837
F72.36611.35902.62593.28282.62592.18372.1837
F82.36611.35902.62592.62593.28282.18372.1837

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 111.916 C1 C2 F7 111.916
C1 C2 F8 111.916 C2 C1 H3 108.977
C2 C1 H4 108.977 C2 C1 H5 108.977
H3 C1 H4 109.961 H3 C1 H5 109.961
H4 C1 H5 109.961 F6 C2 F7 106.919
F6 C2 F8 106.919 F7 C2 F8 106.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability