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

using model chemistry: B2PLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-278.235039
Energy at 298.15K 
HF Energy-277.963408
Nuclear repulsion energy132.372353
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 B2PLYP/6-311+G(3df,2p)
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' 3161 3161 13.22 33.14 0.68 0.81
2 A' 3101 3101 29.46 108.85 0.24 0.39
3 A' 3073 3073 2.51 137.34 0.01 0.01
4 A' 1500 1500 5.05 4.34 0.75 0.86
5 A' 1445 1445 61.05 0.78 0.34 0.51
6 A' 1401 1401 2.86 0.74 0.49 0.66
7 A' 1168 1168 30.94 2.57 0.03 0.06
8 A' 1149 1149 103.30 3.29 0.75 0.86
9 A' 878 878 8.36 6.58 0.12 0.21
10 A' 569 569 5.50 0.93 0.28 0.44
11 A' 467 467 12.52 0.89 0.61 0.76
12 A" 3157 3157 8.35 48.06 0.75 0.86
13 A" 1501 1501 1.27 3.21 0.75 0.86
14 A" 1395 1395 15.52 3.67 0.75 0.86
15 A" 1145 1145 142.86 1.93 0.75 0.86
16 A" 949 949 84.31 2.63 0.75 0.86
17 A" 383 383 0.22 0.39 0.75 0.86
18 A" 234 234 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13337.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13337.1 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 B2PLYP/6-311+G(3df,2p)
ABC
0.31629 0.29964 0.17257

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.166 0.000
C2 -0.900 1.037 0.000
H3 1.265 0.712 0.000
F4 0.322 -0.649 1.098
F5 0.322 -0.649 -1.098
H6 -1.789 0.410 0.000
H7 -0.903 1.667 0.886
H8 -0.903 1.667 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50061.08961.36701.36702.12532.13062.1306
C21.50062.18992.35352.35351.08751.08741.0874
H31.08962.18991.98601.98603.06932.53012.5301
F41.36702.35351.98602.19532.60442.62843.2861
F51.36702.35351.98602.19532.60443.28612.6284
H62.12531.08753.06932.60442.60441.77461.7746
H72.13061.08742.53012.62843.28611.77461.7720
H82.13061.08742.53013.28612.62841.77461.7720

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 109.370 C1 C2 H7 109.795
C1 C2 H8 109.795 C2 C1 H3 114.510
C2 C1 F4 110.226 C2 C1 F5 110.226
H3 C1 F4 107.357 H3 C1 F5 107.357
F4 C1 F5 106.830 H6 C2 H7 109.364
H6 C2 H8 109.364 H7 C2 H8 109.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.708      
2 C -0.425      
3 H 0.147      
4 F -0.456      
5 F -0.456      
6 H 0.164      
7 H 0.158      
8 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.359 2.306 0.000 2.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.691 0.514 0.005
y 0.514 -23.183 -0.008
z 0.005 -0.008 -25.768
Traceless
 xyz
x 2.785 0.514 0.005
y 0.514 0.546 -0.008
z 0.005 -0.008 -3.331
Polar
3z2-r2-6.662
x2-y21.493
xy0.514
xz0.005
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.227 -0.196 -0.000
y -0.196 4.288 0.001
z -0.000 0.001 4.290


<r2> (average value of r2) Å2
<r2> 72.168
(<r2>)1/2 8.495