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

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-278.324155
Energy at 298.15K 
HF Energy-278.324155
Nuclear repulsion energy130.404836
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 BLYP/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' 3053 3045 26.63 43.77 0.72 0.84
2 A' 2989 2981 49.51 140.96 0.26 0.41
3 A' 2978 2971 7.19 100.12 0.02 0.04
4 A' 1465 1461 5.23 10.79 0.75 0.86
5 A' 1399 1395 54.90 3.75 0.61 0.76
6 A' 1356 1352 14.79 1.66 0.73 0.84
7 A' 1130 1128 23.43 0.97 0.02 0.05
8 A' 1076 1073 111.91 3.95 0.75 0.86
9 A' 839 837 10.74 5.89 0.24 0.39
10 A' 542 541 6.46 1.13 0.52 0.68
11 A' 444 443 10.61 1.35 0.68 0.81
12 A" 3047 3039 18.75 61.77 0.75 0.86
13 A" 1466 1462 1.14 9.07 0.75 0.86
14 A" 1357 1354 22.76 9.58 0.75 0.86
15 A" 1101 1098 98.66 2.53 0.75 0.86
16 A" 893 891 107.22 4.17 0.75 0.86
17 A" 370 369 0.11 0.55 0.75 0.86
18 A" 242 241 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12871.9 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 12839.7 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 BLYP/6-311G*
ABC
0.30407 0.29346 0.16735

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.171 0.000
C2 -0.910 1.045 0.000
H3 1.280 0.720 0.000
F4 0.327 -0.655 1.121
F5 0.327 -0.655 -1.121
H6 -1.805 0.409 0.000
H7 -0.926 1.683 0.894
H8 -0.926 1.683 -0.894

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51471.10091.39211.39212.14512.15792.1579
C21.51472.21472.38232.38231.09811.09851.0985
H31.10092.21472.01422.01423.10142.56822.5682
F41.39212.38232.01422.24212.63292.66223.3310
F51.39212.38232.01422.24212.63293.33102.6622
H62.14511.09813.10142.63292.63291.78791.7879
H72.15791.09852.56822.66223.33101.78791.7876
H82.15791.09852.56823.33102.66221.78791.7876

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 109.333 C1 C2 H7 110.320
C1 C2 H8 110.320 C2 C1 H3 114.795
C2 C1 F4 110.012 C2 C1 F5 110.012
H3 C1 F4 107.216 H3 C1 F5 107.216
F4 C1 F5 107.278 H6 C2 H7 108.962
H6 C2 H8 108.962 H7 C2 H8 108.912
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.287      
2 C -0.639      
3 H 0.169      
4 F -0.228      
5 F -0.228      
6 H 0.218      
7 H 0.210      
8 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.298 2.084 0.000 2.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.842 0.589 0.000
y 0.589 -23.013 0.000
z 0.000 0.000 -25.362
Traceless
 xyz
x 2.346 0.589 0.000
y 0.589 0.589 0.000
z 0.000 0.000 -2.934
Polar
3z2-r2-5.868
x2-y21.171
xy0.589
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.784 -0.131 0.000
y -0.131 3.729 0.000
z 0.000 0.000 3.754


<r2> (average value of r2) Å2
<r2> 73.779
(<r2>)1/2 8.589