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

using model chemistry: PBEPBE/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 PBEPBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-278.117216
Energy at 298.15K 
HF Energy-278.117216
Nuclear repulsion energy131.291538
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 PBEPBE/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' 3073 3048 10.17 39.66 0.72 0.84
2 A' 2987 2962 2.11 165.32 0.00 0.01
3 A' 2975 2950 36.28 102.41 0.27 0.43
4 A' 1432 1421 5.35 4.34 0.75 0.86
5 A' 1371 1360 62.78 0.94 0.58 0.74
6 A' 1332 1321 2.41 0.95 0.42 0.59
7 A' 1116 1107 23.13 2.41 0.04 0.08
8 A' 1097 1088 110.67 3.17 0.73 0.84
9 A' 845 838 7.34 6.22 0.14 0.25
10 A' 546 542 4.52 1.00 0.29 0.45
11 A' 447 443 10.60 0.99 0.62 0.77
12 A" 3069 3044 7.25 52.18 0.75 0.86
13 A" 1433 1421 1.62 3.39 0.75 0.86
14 A" 1322 1311 12.39 4.16 0.75 0.86
15 A" 1086 1077 138.41 1.82 0.75 0.86
16 A" 895 888 87.65 2.55 0.75 0.86
17 A" 369 366 0.40 0.48 0.75 0.86
18 A" 220 218 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12806.3 cm-1
Scaled (by 0.9918) Zero Point Vibrational Energy (zpe) 12701.3 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 PBEPBE/6-311+G(3df,2p)
ABC
0.31037 0.29575 0.16978

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.167 0.000
C2 -0.900 1.047 0.000
H3 1.280 0.713 0.000
F4 0.322 -0.655 1.109
F5 0.322 -0.655 -1.109
H6 -1.803 0.424 0.000
H7 -0.900 1.684 0.893
H8 -0.900 1.684 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50541.10251.37991.37992.14012.14292.1429
C21.50542.20492.36992.36991.09711.09701.0970
H31.10252.20492.00422.00423.09602.54782.5478
F41.37992.36992.00422.21722.62802.64793.3120
F51.37992.36992.00422.21722.62803.31202.6479
H62.14011.09713.09602.62802.62801.78931.7893
H72.14291.09702.54782.64793.31201.78931.7853
H82.14291.09702.54783.31202.64791.78931.7853

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 109.633 C1 C2 H7 109.866
C1 C2 H8 109.866 C2 C1 H3 114.560
C2 C1 F4 110.367 C2 C1 F5 110.367
H3 C1 F4 107.146 H3 C1 F5 107.146
F4 C1 F5 106.906 H6 C2 H7 109.269
H6 C2 H8 109.269 H7 C2 H8 108.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.661      
2 C -0.360      
3 H 0.115      
4 F -0.413      
5 F -0.413      
6 H 0.141      
7 H 0.135      
8 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.385 2.218 0.000 2.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.819 0.429 0.000
y 0.429 -23.197 0.000
z 0.000 0.000 -25.706
Traceless
 xyz
x 2.632 0.429 0.000
y 0.429 0.565 0.000
z 0.000 0.000 -3.198
Polar
3z2-r2-6.395
x2-y21.378
xy0.429
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.544 -0.238 0.000
y -0.238 4.593 0.000
z 0.000 0.000 4.577


<r2> (average value of r2) Å2
<r2> 73.111
(<r2>)1/2 8.550