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

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-278.084225
Energy at 298.15K 
HF Energy-278.084225
Nuclear repulsion energy131.149417
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 PBEPBEultrafine/6-311G*
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' 3077 3045 18.96 46.36 0.73 0.84
2 A' 2993 2962 19.60 196.80 0.06 0.12
3 A' 2991 2960 40.11 39.72 0.71 0.83
4 A' 1453 1438 6.02 10.60 0.75 0.86
5 A' 1394 1379 77.33 4.12 0.59 0.75
6 A' 1347 1333 4.91 1.01 0.75 0.86
7 A' 1131 1119 26.03 0.96 0.02 0.03
8 A' 1103 1091 109.04 3.93 0.75 0.86
9 A' 850 841 8.58 5.55 0.26 0.41
10 A' 548 542 5.47 1.08 0.56 0.72
11 A' 450 445 11.03 1.23 0.67 0.81
12 A" 3075 3043 13.79 58.71 0.75 0.86
13 A" 1453 1438 0.83 8.17 0.75 0.86
14 A" 1356 1342 25.15 10.23 0.75 0.86
15 A" 1111 1100 128.65 2.40 0.75 0.86
16 A" 912 902 80.05 3.90 0.75 0.86
17 A" 370 366 0.13 0.51 0.75 0.86
18 A" 246 243 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12929.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 12794.9 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 PBEPBEultrafine/6-311G*
ABC
0.30807 0.29673 0.16948

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.167 0.000
C2 -0.904 1.039 0.000
H3 1.280 0.720 0.000
F4 0.324 -0.651 1.113
F5 0.324 -0.651 -1.113
H6 -1.801 0.403 0.000
H7 -0.920 1.678 0.894
H8 -0.920 1.678 -0.894

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50671.10381.38121.38122.13812.15212.1521
C21.50672.20692.36742.36741.09941.09931.0993
H31.10382.20692.00792.00793.09652.56022.5602
F41.38122.36742.00792.22612.62012.64953.3170
F51.38122.36742.00792.22612.62013.31702.6495
H62.13811.09943.09652.62012.62011.78941.7894
H72.15211.09932.56022.64953.31701.78941.7889
H82.15211.09932.56023.31702.64951.78941.7889

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 109.261 C1 C2 H7 110.372
C1 C2 H8 110.372 C2 C1 H3 114.543
C2 C1 F4 110.043 C2 C1 F5 110.043
H3 C1 F4 107.271 H3 C1 F5 107.271
F4 C1 F5 107.383 H6 C2 H7 108.950
H6 C2 H8 108.950 H7 C2 H8 108.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.253      
2 C -0.700      
3 H 0.179      
4 F -0.214      
5 F -0.214      
6 H 0.236      
7 H 0.229      
8 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.305 2.021 0.000 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.737 0.555 0.000
y 0.555 -22.847 0.000
z 0.000 0.000 -25.113
Traceless
 xyz
x 2.243 0.555 0.000
y 0.555 0.578 0.000
z 0.000 0.000 -2.821
Polar
3z2-r2-5.641
x2-y21.110
xy0.555
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.785 -0.124 0.000
y -0.124 3.712 0.000
z 0.000 0.000 3.723


<r2> (average value of r2) Å2
<r2> 72.998
(<r2>)1/2 8.544