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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-375.413691
Energy at 298.15K-375.418280
Nuclear repulsion energy199.203058
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 B1B95/3-21G
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 3127 2991 0.00      
2 A1 1489 1425 55.74      
3 A1 1309 1253 202.73      
4 A1 825 789 2.12      
5 A1 564 540 27.40      
6 A2 268 257 0.00      
7 E 3211 3072 2.07      
7 E 3211 3072 2.08      
8 E 1548 1481 0.23      
8 E 1548 1481 0.24      
9 E 1325 1268 212.86      
9 E 1325 1268 212.76      
10 E 1029 984 28.95      
10 E 1029 984 28.98      
11 E 513 490 3.18      
11 E 513 490 3.19      
12 E 336 321 0.52      
12 E 336 321 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 11752.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11243.9 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 B1B95/3-21G
ABC
0.17584 0.17039 0.17039

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

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 -0.025
H3 0.000 -1.026 1.830
H4 0.889 0.513 1.830
H5 -0.889 0.513 1.830
F6 0.000 1.275 -0.524
F7 -1.104 -0.638 -0.524
F8 1.104 -0.638 -0.524

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.49141.08861.08861.08862.36402.36402.3640
C21.49142.11942.11942.11941.36951.36951.3695
H31.08862.11941.77751.77753.29182.62872.6287
H41.08862.11941.77751.77752.62873.29182.6287
H51.08862.11941.77751.77752.62872.62873.2918
F62.36401.36953.29182.62872.62872.20882.2088
F72.36401.36952.62873.29182.62872.20882.2088
F82.36401.36952.62872.62873.29182.20882.2088

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 111.377 C1 C2 F7 111.377
C1 C2 F8 111.377 C2 C1 H3 109.482
C2 C1 H4 109.482 C2 C1 H5 109.482
H3 C1 H4 109.461 H3 C1 H5 109.461
H4 C1 H5 109.461 F6 C2 F7 107.500
F6 C2 F8 107.500 F7 C2 F8 107.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.704      
2 C 0.807      
3 H 0.253      
4 H 0.253      
5 H 0.253      
6 F -0.287      
7 F -0.287      
8 F -0.287      


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 2.286 2.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.928 0.000 0.000
y 0.000 -27.928 0.000
z 0.000 0.000 -24.995
Traceless
 xyz
x -1.467 0.000 0.000
y 0.000 -1.467 0.000
z 0.000 0.000 2.933
Polar
3z2-r25.866
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 2.956 0.000 0.000
y 0.000 2.956 0.000
z 0.000 0.000 2.827


<r2> (average value of r2) Å2
<r2> 94.264
(<r2>)1/2 9.709