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

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-278.089980
Energy at 298.15K 
HF Energy-278.089980
Nuclear repulsion energy131.117376
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 PBEPBE/6-311G**
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' 3079 3051 13.92 47.00 0.73 0.84
2 A' 2992 2965 2.53 145.25 0.01 0.02
3 A' 2983 2956 51.92 100.72 0.35 0.51
4 A' 1432 1419 5.58 9.80 0.75 0.86
5 A' 1381 1368 75.53 3.71 0.59 0.74
6 A' 1334 1321 3.28 0.90 0.75 0.85
7 A' 1123 1112 26.93 1.09 0.02 0.04
8 A' 1100 1090 108.35 3.86 0.75 0.86
9 A' 847 840 8.19 5.45 0.25 0.40
10 A' 546 541 5.45 1.07 0.55 0.71
11 A' 448 444 11.29 1.22 0.67 0.80
12 A" 3076 3048 10.52 58.05 0.75 0.86
13 A" 1434 1420 0.75 7.60 0.75 0.86
14 A" 1342 1330 22.86 9.59 0.75 0.86
15 A" 1104 1094 130.49 2.32 0.75 0.86
16 A" 906 898 75.46 3.66 0.75 0.86
17 A" 369 366 0.16 0.52 0.75 0.86
18 A" 239 237 0.07 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12866.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 12748.9 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 PBEPBE/6-311G**
ABC
0.30802 0.29651 0.16945

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.168 0.000
C2 -0.905 1.039 0.000
H3 1.278 0.724 0.000
F4 0.325 -0.651 1.113
F5 0.325 -0.651 -1.113
H6 -1.800 0.400 0.000
H7 -0.918 1.677 0.895
H8 -0.918 1.677 -0.895

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50711.10391.38211.38212.13682.14992.1499
C21.50712.20632.36842.36841.09901.09901.0990
H31.10392.20632.01002.01003.09482.55602.5560
F41.38212.36842.01002.22592.61842.64833.3162
F51.38212.36842.01002.22592.61843.31622.6483
H62.13681.09903.09482.61842.61841.79111.7911
H72.14991.09902.55602.64833.31621.79111.7896
H82.14991.09902.55603.31622.64831.79111.7896

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 109.147 C1 C2 H7 110.177
C1 C2 H8 110.177 C2 C1 H3 114.457
C2 C1 F4 110.038 C2 C1 F5 110.038
H3 C1 F4 107.375 H3 C1 F5 107.375
F4 C1 F5 107.269 H6 C2 H7 109.149
H6 C2 H8 109.149 H7 C2 H8 109.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.298      
2 C -0.377      
3 H 0.101      
4 F -0.216      
5 F -0.216      
6 H 0.142      
7 H 0.135      
8 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.314 2.033 0.000 2.057
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.677 0.523 0.000
y 0.523 -22.806 0.000
z 0.000 0.000 -25.088
Traceless
 xyz
x 2.270 0.523 0.000
y 0.523 0.576 0.000
z 0.000 0.000 -2.846
Polar
3z2-r2-5.693
x2-y21.129
xy0.523
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.844 -0.136 0.000
y -0.136 3.768 0.000
z 0.000 0.000 3.774


<r2> (average value of r2) Å2
<r2> 72.982
(<r2>)1/2 8.543