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

using model chemistry: TPSSh/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/STO-3G
 hartrees
Energy at 0K-274.497478
Energy at 298.15K 
HF Energy-274.497478
Nuclear repulsion energy127.528666
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 TPSSh/STO-3G
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' 3497 3497 0.45 25.53 0.75 0.86
2 A' 3318 3318 0.04 40.34 0.02 0.04
3 A' 3128 3128 40.77 43.89 0.35 0.52
4 A' 1674 1674 1.85 16.12 0.75 0.86
5 A' 1539 1539 4.22 3.49 0.71 0.83
6 A' 1450 1450 38.52 6.88 0.73 0.84
7 A' 1190 1190 25.72 2.26 0.37 0.54
8 A' 1138 1138 32.29 6.06 0.69 0.82
9 A' 891 891 1.17 6.63 0.21 0.35
10 A' 537 537 2.34 0.92 0.54 0.70
11 A' 427 427 3.92 1.58 0.67 0.80
12 A" 3492 3492 0.26 28.05 0.75 0.86
13 A" 1676 1676 0.41 13.60 0.75 0.86
14 A" 1456 1456 52.36 5.49 0.75 0.86
15 A" 1235 1235 38.30 4.59 0.75 0.86
16 A" 1015 1015 4.87 5.03 0.75 0.86
17 A" 347 347 0.00 0.48 0.75 0.86
18 A" 162 162 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14085.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14085.9 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 TPSSh/STO-3G
ABC
0.29396 0.27490 0.15845

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.334 0.146 0.000
C2 -0.933 1.099 0.000
H3 1.276 0.779 0.000
F4 0.334 -0.679 1.142
F5 0.334 -0.679 -1.142
H6 -1.858 0.501 0.000
H7 -0.915 1.738 0.897
H8 -0.915 1.738 -0.897

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.58511.13521.40881.40882.22072.21352.2135
C21.58512.23192.46352.46351.10131.10151.1015
H31.13522.23192.07782.07783.14652.55452.5545
F41.40882.46352.07782.28482.73922.73163.3999
F51.40882.46352.07782.28482.73923.39992.7316
H62.22071.10133.14652.73922.73921.79521.7952
H72.21351.10152.55452.73163.39991.79521.7934
H82.21351.10152.55453.39992.73161.79521.7934

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 110.207 C1 C2 H7 109.643
C1 C2 H8 109.643 C2 C1 H3 109.144
C2 C1 F4 110.602 C2 C1 F5 110.602
H3 C1 F4 109.047 H3 C1 F5 109.047
F4 C1 F5 108.364 H6 C2 H7 109.167
H6 C2 H8 109.167 H7 C2 H8 108.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.137      
2 C -0.223      
3 H 0.054      
4 F -0.100      
5 F -0.100      
6 H 0.078      
7 H 0.077      
8 H 0.077      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.155 1.049 0.000 1.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.780 -0.083 0.000
y -0.083 1.947 0.000
z 0.000 0.000 2.044


<r2> (average value of r2) Å2
<r2> 75.294
(<r2>)1/2 8.677