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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-278.005919
Energy at 298.15K 
HF Energy-278.005919
Nuclear repulsion energy131.168994
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 PBEPBEultrafine/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' 3101 3059 12.02 48.04 0.74 0.85
2 A' 3007 2966 2.66 113.96 0.01 0.02
3 A' 2973 2932 63.40 95.18 0.31 0.47
4 A' 1451 1431 4.31 16.10 0.75 0.86
5 A' 1395 1375 71.23 4.86 0.75 0.85
6 A' 1348 1329 4.61 1.30 0.72 0.84
7 A' 1135 1119 44.50 1.86 0.08 0.14
8 A' 1115 1099 75.05 4.53 0.75 0.86
9 A' 856 844 5.06 6.52 0.25 0.40
10 A' 548 540 4.58 0.87 0.55 0.71
11 A' 446 440 10.03 1.08 0.66 0.80
12 A" 3098 3056 10.37 56.42 0.75 0.86
13 A" 1454 1434 0.01 11.11 0.75 0.86
14 A" 1362 1343 34.09 11.39 0.75 0.86
15 A" 1133 1117 130.91 2.85 0.75 0.86
16 A" 933 920 46.73 5.15 0.75 0.86
17 A" 366 361 0.18 0.28 0.75 0.86
18 A" 248 245 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12984.2 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 12806.3 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 PBEPBEultrafine/6-31G**
ABC
0.30770 0.29718 0.16959

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.165 0.000
C2 -0.909 1.034 0.000
H3 1.275 0.737 0.000
F4 0.326 -0.648 1.114
F5 0.326 -0.648 -1.114
H6 -1.803 0.392 0.000
H7 -0.926 1.673 0.895
H8 -0.926 1.673 -0.895

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51101.10761.37861.37862.14132.15572.1557
C21.51102.20392.36582.36581.10031.10011.1001
H31.10762.20392.01442.01443.09662.55382.5538
F41.37862.36582.01442.22712.61842.64703.3157
F51.37862.36582.01442.22712.61843.31572.6470
H62.14131.10033.09662.61842.61841.79191.7919
H72.15571.10012.55382.64703.31571.79191.7905
H82.15571.10012.55383.31572.64701.79191.7905

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 109.165 C1 C2 H7 110.310
C1 C2 H8 110.310 C2 C1 H3 113.739
C2 C1 F4 109.835 C2 C1 F5 109.835
H3 C1 F4 107.742 H3 C1 F5 107.742
F4 C1 F5 107.750 H6 C2 H7 109.047
H6 C2 H8 109.047 H7 C2 H8 108.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.418      
2 C -0.419      
3 H 0.091      
4 F -0.261      
5 F -0.261      
6 H 0.152      
7 H 0.140      
8 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.338 1.795 0.000 1.827
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.352 0.417 0.000
y 0.417 -22.308 0.000
z 0.000 0.000 -24.326
Traceless
 xyz
x 1.964 0.417 0.000
y 0.417 0.532 0.000
z 0.000 0.000 -2.496
Polar
3z2-r2-4.992
x2-y20.955
xy0.417
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.665 -0.096 0.000
y -0.096 3.614 0.000
z 0.000 0.000 3.615


<r2> (average value of r2) Å2
<r2> 72.625
(<r2>)1/2 8.522