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

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-84.348022
Energy at 298.15K-84.352847
Nuclear repulsion energy115.629452
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 HF/CEP-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 3268 2935 6.60      
2 A1 1593 1430 100.80      
3 A1 1414 1269 159.98      
4 A1 903 811 5.52      
5 A1 641 575 33.94      
6 A2 239 215 0.00      
7 E 3358 3015 24.79      
7 E 3358 3015 24.79      
8 E 1612 1448 0.11      
8 E 1612 1448 0.11      
9 E 1388 1247 318.34      
9 E 1388 1247 318.34      
10 E 1083 972 53.04      
10 E 1083 972 53.04      
11 E 582 523 2.87      
11 E 582 523 2.87      
12 E 385 345 0.33      
12 E 385 345 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 12436.5 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 11168.0 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 HF/CEP-31G*
ABC
0.18647 0.17355 0.17355

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.477
C2 0.000 0.000 -0.041
H3 0.000 -1.028 1.832
H4 0.890 0.514 1.832
H5 -0.890 0.514 1.832
F6 0.000 1.237 -0.535
F7 -1.071 -0.618 -0.535
F8 1.071 -0.618 -0.535

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.51801.08741.08741.08742.36152.36152.3615
C21.51802.13652.13652.13651.33191.33191.3319
H31.08742.13651.78031.78033.27582.62992.6299
H41.08742.13651.78031.78032.62993.27582.6299
H51.08742.13651.78031.78032.62992.62993.2758
F62.36151.33193.27582.62992.62992.14252.1425
F72.36151.33192.62993.27582.62992.14252.1425
F82.36151.33192.62992.62993.27582.14252.1425

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 111.755 C1 C2 F7 111.755
C1 C2 F8 111.755 C2 C1 H3 109.058
C2 C1 H4 109.058 C2 C1 H5 109.058
H3 C1 H4 109.881 H3 C1 H5 109.881
H4 C1 H5 109.881 F6 C2 F7 107.094
F6 C2 F8 107.094 F7 C2 F8 107.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.234      
2 C 0.436      
3 H 0.136      
4 H 0.136      
5 H 0.136      
6 F -0.203      
7 F -0.203      
8 F -0.203      


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 2.497 2.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.517 0.000 0.000
y 0.000 -28.517 0.000
z 0.000 0.000 -25.521
Traceless
 xyz
x -1.498 0.000 0.000
y 0.000 -1.498 0.000
z 0.000 0.000 2.996
Polar
3z2-r25.992
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 3.189 0.000 0.000
y 0.000 3.189 0.000
z 0.000 0.000 3.257


<r2> (average value of r2) Å2
<r2> 77.295
(<r2>)1/2 8.792