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

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-373.746636
Energy at 298.15K-373.751213
Nuclear repulsion energy199.792682
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 LSDA/3-21G
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 3042 2992 0.28      
2 A1 1431 1407 88.84      
3 A1 1303 1282 177.64      
4 A1 833 820 2.05      
5 A1 565 556 23.80      
6 A2 279 275 0.00      
7 E 3131 3079 0.59      
7 E 3131 3079 0.59      
8 E 1492 1467 0.00      
8 E 1492 1467 0.00      
9 E 1306 1285 218.03      
9 E 1306 1285 218.00      
10 E 1002 985 17.66      
10 E 1002 985 17.67      
11 E 513 504 2.02      
11 E 513 504 2.02      
12 E 330 325 0.63      
12 E 330 325 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 11499.8 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 11311.2 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 LSDA/3-21G
ABC
0.17652 0.17187 0.17187

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.455
C2 0.000 0.000 -0.027
H3 0.000 -1.035 1.825
H4 0.896 0.518 1.825
H5 -0.896 0.518 1.825
F6 0.000 1.272 -0.520
F7 -1.102 -0.636 -0.520
F8 1.102 -0.636 -0.520

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.48171.09921.09921.09922.34962.34962.3496
C21.48172.12142.12142.12141.36471.36471.3647
H31.09922.12141.79271.79273.29012.62192.6219
H41.09922.12141.79271.79272.62193.29012.6219
H51.09922.12141.79271.79272.62192.62193.2901
F62.34961.36473.29012.62192.62192.20372.2037
F72.34961.36472.62193.29012.62192.20372.2037
F82.34961.36472.62192.62193.29012.20372.2037

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 111.206 C1 C2 F7 111.206
C1 C2 F8 111.206 C2 C1 H3 109.677
C2 C1 H4 109.677 C2 C1 H5 109.677
H3 C1 H4 109.265 H3 C1 H5 109.265
H4 C1 H5 109.265 F6 C2 F7 107.682
F6 C2 F8 107.682 F7 C2 F8 107.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.728      
2 C 0.666      
3 H 0.257      
4 H 0.257      
5 H 0.257      
6 F -0.236      
7 F -0.236      
8 F -0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.056 2.056
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.695 0.000 0.000
y 0.000 -27.695 0.000
z 0.000 0.000 -25.132
Traceless
 xyz
x -1.281 0.000 0.000
y 0.000 -1.281 0.000
z 0.000 0.000 2.562
Polar
3z2-r25.124
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.043 0.000 0.000
y 0.000 3.043 0.000
z 0.000 0.000 2.930


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000