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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-278.046472
Energy at 298.15K 
HF Energy-278.046472
Nuclear repulsion energy132.493377
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3186 3040 12.17 45.80 0.74 0.85
2 A' 3089 2948 5.92 148.56 0.03 0.05
3 A' 3085 2944 53.90 54.07 0.55 0.71
4 A' 1496 1428 6.51 15.53 0.75 0.86
5 A' 1454 1388 80.80 3.18 0.69 0.82
6 A' 1398 1334 2.61 0.98 0.75 0.86
7 A' 1185 1131 83.11 2.81 0.37 0.55
8 A' 1164 1111 42.98 3.76 0.60 0.75
9 A' 890 849 5.50 6.26 0.25 0.40
10 A' 570 544 5.28 0.79 0.57 0.72
11 A' 466 445 12.13 0.93 0.63 0.77
12 A" 3184 3039 9.67 54.50 0.75 0.86
13 A" 1499 1431 0.03 9.91 0.75 0.86
14 A" 1418 1353 38.60 10.99 0.75 0.86
15 A" 1192 1138 147.70 2.80 0.75 0.86
16 A" 977 933 37.59 4.81 0.75 0.86
17 A" 380 362 0.13 0.22 0.75 0.86
18 A" 251 240 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13441.4 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 12827.1 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 HSEh1PBE/6-31G**
ABC
0.31549 0.30175 0.17309

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.163 0.000
C2 -0.903 1.026 0.000
H3 1.263 0.730 0.000
F4 0.324 -0.643 1.099
F5 0.324 -0.643 -1.099
H6 -1.790 0.388 0.000
H7 -0.919 1.660 0.889
H8 -0.919 1.660 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50081.09721.36251.36252.12582.13992.1399
C21.50082.18632.34532.34531.09241.09201.0920
H31.09722.18631.99371.99373.07182.53332.5333
F41.36252.34531.99372.19782.59592.62563.2867
F51.36252.34531.99372.19782.59593.28672.6256
H62.12581.09243.07182.59592.59591.77931.7793
H72.13991.09202.53332.62563.28671.77931.7785
H82.13991.09202.53333.28672.62561.77931.7785

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 109.102 C1 C2 H7 110.248
C1 C2 H8 110.248 C2 C1 H3 113.697
C2 C1 F4 109.893 C2 C1 F5 109.893
H3 C1 F4 107.814 H3 C1 F5 107.814
F4 C1 F5 107.516 H6 C2 H7 109.088
H6 C2 H8 109.088 H7 C2 H8 109.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.476      
2 C -0.452      
3 H 0.103      
4 F -0.295      
5 F -0.295      
6 H 0.163      
7 H 0.150      
8 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.328 1.932 0.000 1.960
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.200 0.480 0.000
y 0.480 -22.274 0.000
z 0.000 0.000 -24.434
Traceless
 xyz
x 2.154 0.480 0.000
y 0.480 0.543 0.000
z 0.000 0.000 -2.697
Polar
3z2-r2-5.394
x2-y21.074
xy0.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.517 -0.064 0.000
y -0.064 3.462 0.000
z 0.000 0.000 3.466


<r2> (average value of r2) Å2
<r2> 71.476
(<r2>)1/2 8.454