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

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-278.232999
Energy at 298.15K 
HF Energy-278.232999
Nuclear repulsion energy130.478781
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 BLYP/6-31G*
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' 3071 3046 20.04 46.59 0.74 0.85
2 A' 2994 2970 3.90 115.30 0.01 0.02
3 A' 2975 2951 65.42 89.46 0.36 0.53
4 A' 1480 1468 3.34 16.76 0.75 0.86
5 A' 1411 1400 47.74 5.17 0.75 0.86
6 A' 1371 1360 18.37 2.15 0.72 0.84
7 A' 1140 1131 26.41 1.62 0.08 0.14
8 A' 1096 1087 93.56 4.75 0.73 0.84
9 A' 849 842 7.15 6.82 0.24 0.39
10 A' 545 540 5.29 0.91 0.51 0.68
11 A' 442 438 9.58 1.19 0.67 0.80
12 A" 3066 3041 16.68 58.38 0.75 0.86
13 A" 1482 1470 0.09 12.62 0.75 0.86
14 A" 1378 1367 34.06 10.68 0.75 0.86
15 A" 1125 1116 105.36 3.19 0.75 0.86
16 A" 928 920 72.50 5.51 0.75 0.86
17 A" 366 363 0.11 0.30 0.75 0.86
18 A" 250 248 0.07 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12983.5 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 12878.3 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 BLYP/6-31G*
ABC
0.30410 0.29407 0.16759

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.328 0.166 0.000
C2 -0.914 1.041 0.000
H3 1.277 0.733 0.000
F4 0.328 -0.652 1.121
F5 0.328 -0.652 -1.121
H6 -1.810 0.400 0.000
H7 -0.930 1.680 0.896
H8 -0.930 1.680 -0.896

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51931.10531.38761.38762.15072.16312.1631
C21.51932.21242.37992.37991.10121.10131.1013
H31.10532.21242.01862.01863.10462.56332.5633
F41.38762.37992.01862.24162.63312.65943.3303
F51.38762.37992.01862.24162.63313.33032.6594
H62.15071.10123.10462.63312.63311.79351.7935
H72.16311.10132.56332.65943.33031.79351.7927
H82.16311.10132.56333.33032.65941.79351.7927

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 109.278 C1 C2 H7 110.251
C1 C2 H8 110.251 C2 C1 H3 113.985
C2 C1 F4 109.835 C2 C1 F5 109.835
H3 C1 F4 107.610 H3 C1 F5 107.610
F4 C1 F5 107.753 H6 C2 H7 109.038
H6 C2 H8 109.038 H7 C2 H8 108.959
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.420      
2 C -0.456      
3 H 0.104      
4 F -0.265      
5 F -0.265      
6 H 0.162      
7 H 0.150      
8 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.325 1.825 0.000 1.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.428 0.452 0.000
y 0.452 -22.428 0.000
z 0.000 0.000 -24.471
Traceless
 xyz
x 2.021 0.452 0.000
y 0.452 0.522 0.000
z 0.000 0.000 -2.543
Polar
3z2-r2-5.086
x2-y20.999
xy0.452
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.600 -0.095 0.000
y -0.095 3.572 0.000
z 0.000 0.000 3.589


<r2> (average value of r2) Å2
<r2> 73.334
(<r2>)1/2 8.564