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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G**
 hartrees
Energy at 0K-278.101129
Energy at 298.15K 
HF Energy-278.101129
Nuclear repulsion energy132.590773
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 PBE1PBE/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' 3165 3037 14.36 42.44 0.71 0.83
2 A' 3092 2966 45.62 117.94 0.27 0.42
3 A' 3074 2949 2.76 113.17 0.01 0.02
4 A' 1478 1418 8.17 9.43 0.75 0.85
5 A' 1442 1383 85.77 2.63 0.44 0.61
6 A' 1383 1327 1.40 0.66 0.71 0.83
7 A' 1171 1123 87.52 2.23 0.46 0.63
8 A' 1158 1111 54.74 2.97 0.54 0.70
9 A' 884 848 7.59 5.19 0.24 0.39
10 A' 571 548 5.75 0.94 0.58 0.74
11 A' 470 451 13.58 1.02 0.64 0.78
12 A" 3164 3036 9.57 54.09 0.75 0.86
13 A" 1480 1420 0.26 6.40 0.75 0.86
14 A" 1401 1344 28.73 9.04 0.75 0.86
15 A" 1168 1121 159.25 2.36 0.75 0.86
16 A" 960 921 55.29 3.48 0.75 0.86
17 A" 382 367 0.12 0.40 0.75 0.86
18 A" 242 233 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13342.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12800.5 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 PBE1PBE/6-311G**
ABC
0.31683 0.30147 0.17335

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.164 0.000
C2 -0.900 1.030 0.000
H3 1.266 0.719 0.000
F4 0.323 -0.645 1.096
F5 0.323 -0.645 -1.096
H6 -1.788 0.395 0.000
H7 -0.911 1.663 0.889
H8 -0.911 1.663 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49801.09471.36261.36262.12292.13532.1353
C21.49802.18782.34572.34571.09181.09151.0915
H31.09472.18781.98831.98833.07092.53392.5339
F41.36262.34571.98832.19272.59572.62523.2850
F51.36262.34571.98832.19272.59573.28502.6252
H62.12291.09183.07092.59572.59571.77951.7795
H72.13531.09152.53392.62523.28501.77951.7785
H82.13531.09152.53393.28502.62521.77951.7785

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 109.112 C1 C2 H7 110.107
C1 C2 H8 110.107 C2 C1 H3 114.195
C2 C1 F4 110.081 C2 C1 F5 110.081
H3 C1 F4 107.527 H3 C1 F5 107.527
F4 C1 F5 107.150 H6 C2 H7 109.189
H6 C2 H8 109.189 H7 C2 H8 109.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.351      
2 C -0.389      
3 H 0.100      
4 F -0.241      
5 F -0.241      
6 H 0.145      
7 H 0.137      
8 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.312 2.130 0.000 2.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.424 0.567 0.000
y 0.567 -22.670 0.000
z 0.000 0.000 -25.038
Traceless
 xyz
x 2.430 0.567 0.000
y 0.567 0.561 0.000
z 0.000 0.000 -2.991
Polar
3z2-r2-5.981
x2-y21.246
xy0.567
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.630 -0.099 0.000
y -0.099 3.566 0.000
z 0.000 0.000 3.574


<r2> (average value of r2) Å2
<r2> 71.646
(<r2>)1/2 8.464