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

using model chemistry: MP2/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-376.830667
Energy at 298.15K-376.835357
HF Energy-375.842761
Nuclear repulsion energy202.456662
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(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3137 2963 0.15      
2 A1 1458 1377 108.00      
3 A1 1324 1251 114.58      
4 A1 858 810 2.98      
5 A1 612 578 20.48      
6 A2 241 227 0.00      
7 E 3246 3066 1.47      
7 E 3246 3066 1.47      
8 E 1511 1427 0.00      
8 E 1511 1427 0.00      
9 E 1292 1220 227.25      
9 E 1292 1220 227.25      
10 E 1003 947 31.52      
10 E 1003 947 31.52      
11 E 549 518 1.09      
11 E 549 518 1.09      
12 E 364 344 0.49      
12 E 364 344 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 11779.8 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 11126.1 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(2df,p)
ABC
0.18447 0.17449 0.17449

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.468
C2 0.000 0.000 -0.032
H3 0.000 -1.027 1.827
H4 0.890 0.514 1.827
H5 -0.890 0.514 1.827
F6 0.000 1.244 -0.522
F7 -1.077 -0.622 -0.522
F8 1.077 -0.622 -0.522

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.50011.08811.08811.08812.34692.34692.3469
C21.50012.12372.12372.12371.33701.33701.3370
H31.08812.12371.77931.77933.26732.61572.6157
H41.08812.12371.77931.77932.61573.26732.6157
H51.08812.12371.77931.77932.61572.61573.2673
F62.34691.33703.26732.61572.61572.15462.1546
F72.34691.33702.61573.26732.61572.15462.1546
F82.34691.33702.61572.61573.26732.15462.1546

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 111.503 C1 C2 F7 111.503
C1 C2 F8 111.503 C2 C1 H3 109.245
C2 C1 H4 109.245 C2 C1 H5 109.245
H3 C1 H4 109.697 H3 C1 H5 109.697
H4 C1 H5 109.697 F6 C2 F7 107.365
F6 C2 F8 107.365 F7 C2 F8 107.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability