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All results from a given calculation for CH3CHF2 (Ethane, 1,1-difluoro-)

using model chemistry: TPSSh/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G
 hartrees
Energy at 0K-278.243663
Energy at 298.15K 
HF Energy-278.243663
Nuclear repulsion energy129.340158
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 TPSSh/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 A' 3176 3056 23.71 33.19 0.63 0.77
2 A' 3136 3017 34.06 124.89 0.33 0.50
3 A' 3079 2962 3.93 110.48 0.01 0.03
4 A' 1540 1481 5.85 17.83 0.75 0.86
5 A' 1478 1422 29.69 4.02 0.75 0.86
6 A' 1409 1356 31.19 3.94 0.75 0.86
7 A' 1186 1141 30.99 2.32 0.32 0.48
8 A' 1117 1075 82.58 4.87 0.66 0.80
9 A' 871 838 13.35 7.98 0.18 0.31
10 A' 529 509 9.75 1.25 0.50 0.67
11 A' 424 408 15.33 1.76 0.72 0.84
12 A" 3166 3046 13.14 61.67 0.75 0.86
13 A" 1542 1484 3.69 15.82 0.75 0.86
14 A" 1393 1340 28.58 8.93 0.75 0.86
15 A" 1164 1120 81.31 4.87 0.75 0.86
16 A" 942 906 78.60 6.50 0.75 0.86
17 A" 359 346 0.02 0.53 0.75 0.86
18 A" 250 240 0.09 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13380.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 12873.0 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 TPSSh/6-31G
ABC
0.29392 0.29378 0.16470

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.328 0.189 0.000
C2 -0.913 1.036 0.000
H3 1.273 0.732 0.000
F4 0.328 -0.656 1.142
F5 0.328 -0.656 -1.142
H6 -1.793 0.389 0.000
H7 -0.937 1.669 0.890
H8 -0.937 1.669 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50301.09001.42061.42062.13102.14152.1415
C21.50302.20742.38912.38911.09231.09261.0926
H31.09002.20742.03082.03083.08562.56052.5605
F41.42062.38912.03082.28502.62642.65933.3374
F51.42062.38912.03082.28502.62643.33742.6593
H62.13101.09233.08562.62642.62641.77891.7789
H72.14151.09262.56052.65933.33741.77891.7795
H82.14151.09262.56053.33742.65931.77891.7795

picture of Ethane, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.373 C1 C2 H7 110.186
C1 C2 H8 110.186 C2 C1 H3 115.786
C2 C1 F4 109.573 C2 C1 F5 109.573
H3 C1 F4 107.236 H3 C1 F5 107.236
F4 C1 F5 107.069 H6 C2 H7 109.011
H6 C2 H8 109.011 H7 C2 H8 109.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.414      
2 C -0.495      
3 H 0.170      
4 F -0.322      
5 F -0.322      
6 H 0.197      
7 H 0.179      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.394 2.584 0.000 2.613
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.195 -0.082 0.000
y -0.082 3.297 0.000
z 0.000 0.000 3.465


<r2> (average value of r2) Å2
<r2> 74.348
(<r2>)1/2 8.623