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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-278.237942
Energy at 298.15K 
HF Energy-278.237942
Nuclear repulsion energy132.325109
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 B1B95/6-31+G**
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' 3192 3054 10.79 41.09 0.71 0.83
2 A' 3125 2989 35.37 114.94 0.27 0.42
3 A' 3094 2959 2.72 125.56 0.01 0.02
4 A' 1488 1424 6.90 8.82 0.75 0.86
5 A' 1444 1381 79.24 1.74 0.48 0.65
6 A' 1386 1326 3.75 0.95 0.69 0.81
7 A' 1166 1116 89.27 3.02 0.27 0.42
8 A' 1157 1107 51.06 3.26 0.64 0.78
9 A' 882 844 8.24 6.36 0.20 0.34
10 A' 562 538 5.91 0.75 0.49 0.66
11 A' 461 441 14.23 1.04 0.64 0.78
12 A" 3188 3050 7.20 56.34 0.75 0.86
13 A" 1489 1424 0.98 6.02 0.75 0.86
14 A" 1388 1327 28.81 6.55 0.75 0.86
15 A" 1158 1108 176.96 2.14 0.75 0.86
16 A" 957 915 65.32 4.33 0.75 0.86
17 A" 378 362 0.16 0.31 0.75 0.86
18 A" 235 225 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13374.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 12794.1 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 B1B95/6-31+G**
ABC
0.31578 0.29999 0.17262

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.168 0.000
C2 -0.899 1.035 0.000
H3 1.269 0.713 0.000
F4 0.322 -0.648 1.098
F5 0.322 -0.648 -1.098
H6 -1.790 0.406 0.000
H7 -0.905 1.667 0.888
H8 -0.905 1.667 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49781.09241.36821.36822.12552.13112.1311
C21.49782.19222.35162.35161.09011.09001.0900
H31.09242.19221.98851.98853.07432.53502.5350
F41.36822.35161.98852.19662.60362.62863.2879
F51.36822.35161.98852.19662.60363.28792.6286
H62.12551.09013.07432.60362.60361.77791.7779
H72.13111.09002.53502.62863.28791.77791.7757
H82.13111.09002.53503.28792.62861.77791.7757

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 109.425 C1 C2 H7 109.878
C1 C2 H8 109.878 C2 C1 H3 114.727
C2 C1 F4 110.189 C2 C1 F5 110.189
H3 C1 F4 107.299 H3 C1 F5 107.299
F4 C1 F5 106.785 H6 C2 H7 109.280
H6 C2 H8 109.280 H7 C2 H8 109.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.447      
2 C -0.535      
3 H 0.139      
4 F -0.303      
5 F -0.303      
6 H 0.193      
7 H 0.181      
8 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.380 2.404 0.000 2.434
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.461 0.516 0.000
y 0.516 -22.978 0.000
z 0.000 0.000 -25.627
Traceless
 xyz
x 2.842 0.516 0.000
y 0.516 0.566 0.000
z 0.000 0.000 -3.408
Polar
3z2-r2-6.815
x2-y21.517
xy0.516
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.905 -0.128 0.000
y -0.128 3.952 0.000
z 0.000 0.000 3.975


<r2> (average value of r2) Å2
<r2> 72.056
(<r2>)1/2 8.489