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

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-376.498697
Energy at 298.15K-376.503482
HF Energy-375.819689
Nuclear repulsion energy202.401701
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 CISD/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 3201 2964 0.67      
2 A1 1546 1431 107.83      
3 A1 1390 1287 141.51      
4 A1 883 818 5.04      
5 A1 626 580 26.94      
6 A2 258 239 0.00      
7 E 3296 3051 5.00      
7 E 3296 3051 5.00      
8 E 1578 1461 0.01      
8 E 1578 1461 0.01      
9 E 1368 1266 259.30      
9 E 1368 1266 259.30      
10 E 1056 977 42.04      
10 E 1056 977 42.04      
11 E 560 519 2.08      
11 E 560 519 2.08      
12 E 379 351 0.56      
12 E 379 351 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 12187.5 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 11283.2 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 CISD/6-31G*
ABC
0.18427 0.17448 0.17448

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.467
C2 0.000 0.000 -0.028
H3 0.000 -1.025 1.825
H4 0.887 0.512 1.825
H5 -0.887 0.512 1.825
F6 0.000 1.245 -0.522
F7 -1.078 -0.622 -0.522
F8 1.078 -0.622 -0.522

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.49511.08541.08541.08542.34662.34662.3466
C21.49512.11782.11782.11781.33931.33931.3393
H31.08542.11781.77461.77463.26512.61442.6144
H41.08542.11781.77461.77462.61443.26512.6144
H51.08542.11781.77461.77462.61442.61443.2651
F62.34661.33933.26512.61442.61442.15602.1560
F72.34661.33932.61443.26512.61442.15602.1560
F82.34661.33932.61442.61443.26512.15602.1560

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 111.650 C1 C2 F7 111.650
C1 C2 F8 111.650 C2 C1 H3 109.281
C2 C1 H4 109.281 C2 C1 H5 109.281
H3 C1 H4 109.661 H3 C1 H5 109.661
H4 C1 H5 109.661 F6 C2 F7 107.207
F6 C2 F8 107.207 F7 C2 F8 107.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability