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

using model chemistry: HSEh1PBE/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-278.161357
Energy at 298.15K 
HF Energy-278.161357
Nuclear repulsion energy132.599328
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/daug-cc-pVTZ
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' 3157 3157 10.86 35.95 0.69 0.82
2 A' 3076 3076 33.81 121.96 0.20 0.33
3 A' 3068 3068 2.25 146.03 0.00 0.01
4 A' 1477 1477 6.07 4.15 0.75 0.86
5 A' 1431 1431 71.60 0.73 0.42 0.59
6 A' 1383 1383 0.75 0.67 0.40 0.58
7 A' 1164 1164 70.11 3.14 0.20 0.34
8 A' 1152 1152 65.36 2.61 0.54 0.70
9 A' 880 880 6.77 6.37 0.12 0.22
10 A' 571 571 4.79 0.81 0.28 0.44
11 A' 468 468 12.30 0.84 0.56 0.72
12 A" 3155 3155 6.98 47.68 0.75 0.86
13 A" 1478 1478 0.85 2.93 0.75 0.86
14 A" 1379 1379 17.43 3.86 0.75 0.86
15 A" 1149 1149 161.34 2.05 0.75 0.86
16 A" 951 951 65.85 2.14 0.75 0.86
17 A" 383 383 0.29 0.37 0.75 0.86
18 A" 229 229 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13276.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13276.0 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/daug-cc-pVTZ
ABC
0.31777 0.30055 0.17325

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.320 0.164 0.000
C2 -0.896 1.037 0.000
H3 1.266 0.713 0.000
F4 0.320 -0.648 1.095
F5 0.320 -0.648 -1.095
H6 -1.789 0.413 0.000
H7 -0.897 1.669 0.887
H8 -0.897 1.669 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49691.09331.36331.36332.12452.12952.1295
C21.49692.18592.34892.34891.08981.08941.0894
H31.09332.18591.98631.98633.07022.52622.5262
F41.36332.34891.98632.18962.60332.62593.2834
F51.36332.34891.98632.18962.60333.28342.6259
H62.12451.08983.07022.60332.60331.77761.7776
H72.12951.08942.52622.62593.28341.77761.7746
H82.12951.08942.52623.28342.62591.77761.7746

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 109.427 C1 C2 H7 109.845
C1 C2 H8 109.845 C2 C1 H3 114.208
C2 C1 F4 110.331 C2 C1 F5 110.331
H3 C1 F4 107.399 H3 C1 F5 107.399
F4 C1 F5 106.853 H6 C2 H7 109.316
H6 C2 H8 109.316 H7 C2 H8 109.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.473      
2 C -1.261      
3 H 0.619      
4 F -0.729      
5 F -0.729      
6 H 0.147      
7 H 0.240      
8 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.365 2.230 0.000 2.260
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.540 0.473 0.000
y 0.473 -22.948 0.000
z 0.000 0.000 -25.434
Traceless
 xyz
x 2.651 0.473 0.000
y 0.473 0.539 0.000
z 0.000 0.000 -3.190
Polar
3z2-r2-6.380
x2-y21.408
xy0.473
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.391 -0.196 0.000
y -0.196 4.419 0.000
z 0.000 0.000 4.380


<r2> (average value of r2) Å2
<r2> 71.826
(<r2>)1/2 8.475