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

using model chemistry: PBEPBE/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 PBEPBE/STO-3G
 hartrees
Energy at 0K-274.149625
Energy at 298.15K 
HF Energy-274.149625
Nuclear repulsion energy127.083541
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/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' 3428 3132 0.53 24.62 0.75 0.86
2 A' 3247 2966 0.02 39.37 0.02 0.03
3 A' 3016 2756 51.91 44.47 0.35 0.52
4 A' 1627 1486 2.80 15.43 0.75 0.86
5 A' 1488 1359 7.04 3.69 0.70 0.82
6 A' 1410 1289 37.10 6.89 0.72 0.84
7 A' 1164 1064 27.53 2.20 0.33 0.50
8 A' 1104 1009 35.20 5.29 0.70 0.83
9 A' 869 794 1.90 6.21 0.22 0.36
10 A' 533 487 1.57 0.95 0.54 0.70
11 A' 422 386 3.05 1.59 0.67 0.80
12 A" 3422 3126 0.30 27.27 0.75 0.86
13 A" 1628 1487 0.70 12.81 0.75 0.86
14 A" 1421 1298 57.30 5.44 0.75 0.86
15 A" 1204 1100 45.41 4.33 0.75 0.86
16 A" 986 901 4.53 4.65 0.75 0.86
17 A" 342 312 0.02 0.50 0.75 0.86
18 A" 158 145 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13734.7 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 12548.0 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 PBEPBE/STO-3G
ABC
0.29146 0.27343 0.15737

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.335 0.144 0.000
C2 -0.936 1.101 0.000
H3 1.281 0.787 0.000
F4 0.335 -0.680 1.147
F5 0.335 -0.680 -1.147
H6 -1.865 0.502 0.000
H7 -0.919 1.743 0.900
H8 -0.919 1.743 -0.900

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.59051.14401.41291.41292.22902.22252.2225
C21.59052.23932.47052.47051.10551.10581.1058
H31.14402.23932.08922.08923.15942.56252.5625
F41.41292.47052.08922.29482.74852.74013.4114
F51.41292.47052.08922.29482.74853.41142.7401
H62.22901.10553.15942.74852.74851.80161.8016
H72.22251.10582.56252.74013.41141.80161.7994
H82.22251.10582.56253.41142.74011.80161.7994

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 110.237 C1 C2 H7 109.719
C1 C2 H8 109.719 C2 C1 H3 108.851
C2 C1 F4 110.543 C2 C1 F5 110.543
H3 C1 F4 109.138 H3 C1 F5 109.138
F4 C1 F5 108.600 H6 C2 H7 109.121
H6 C2 H8 109.121 H7 C2 H8 108.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.106      
2 C -0.255      
3 H 0.059      
4 F -0.084      
5 F -0.084      
6 H 0.086      
7 H 0.086      
8 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.149 0.950 0.000 0.962
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.939 0.294 0.000
y 0.294 -20.369 0.000
z 0.000 0.000 -21.593
Traceless
 xyz
x 1.042 0.294 0.000
y 0.294 0.397 0.000
z 0.000 0.000 -1.439
Polar
3z2-r2-2.877
x2-y20.430
xy0.294
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.784 -0.094 0.000
y -0.094 1.972 0.000
z 0.000 0.000 2.083


<r2> (average value of r2) Å2
<r2> 75.635
(<r2>)1/2 8.697