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

using model chemistry: BLYP/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-278.284672
Energy at 298.15K 
HF Energy-278.284672
Nuclear repulsion energy129.714377
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/aug-cc-pVDZ
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' 3066 3060 14.34 37.17 0.72 0.83
2 A' 3004 2999 30.93 131.05 0.23 0.37
3 A' 2979 2973 3.44 159.93 0.00 0.01
4 A' 1416 1414 4.35 4.61 0.75 0.86
5 A' 1362 1359 51.05 0.83 0.69 0.82
6 A' 1318 1316 5.95 1.13 0.44 0.61
7 A' 1106 1104 18.57 2.44 0.04 0.08
8 A' 1065 1062 109.11 3.89 0.66 0.79
9 A' 826 824 12.74 7.42 0.12 0.22
10 A' 530 529 6.16 1.14 0.26 0.41
11 A' 434 433 10.18 1.06 0.68 0.81
12 A" 3057 3051 10.13 55.67 0.75 0.86
13 A" 1415 1413 1.23 3.82 0.75 0.86
14 A" 1300 1297 10.75 4.01 0.75 0.86
15 A" 1060 1058 105.02 1.73 0.75 0.86
16 A" 860 858 124.14 3.58 0.75 0.86
17 A" 366 365 0.42 0.55 0.75 0.86
18 A" 213 212 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12686.8 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 12662.7 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/aug-cc-pVDZ
ABC
0.30174 0.28984 0.16573

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.176 0.000
C2 -0.909 1.057 0.000
H3 1.291 0.715 0.000
F4 0.324 -0.663 1.125
F5 0.324 -0.663 -1.125
H6 -1.816 0.428 0.000
H7 -0.905 1.698 0.899
H8 -0.905 1.698 -0.899

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51521.10621.40341.40342.15512.15322.1532
C21.51522.22582.39652.39651.10371.10431.1043
H31.10622.22582.02412.02413.11982.56852.5685
F41.40342.39652.02412.24982.65272.67163.3441
F51.40342.39652.02412.24982.65273.34412.6716
H62.15511.10373.11982.65272.65271.80291.8029
H72.15321.10432.56852.67163.34411.80291.7980
H82.15321.10432.56853.34412.67161.80291.7980

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 109.751 C1 C2 H7 109.571
C1 C2 H8 109.571 C2 C1 H3 115.335
C2 C1 F4 110.334 C2 C1 F5 110.334
H3 C1 F4 106.923 H3 C1 F5 106.923
F4 C1 F5 106.557 H6 C2 H7 109.470
H6 C2 H8 109.470 H7 C2 H8 108.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.308      
2 C 0.797      
3 H -0.518      
4 F -0.411      
5 F -0.411      
6 H -0.260      
7 H -0.253      
8 H -0.253      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.398 2.354 0.000 2.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.035 0.495 0.000
y 0.495 -23.502 0.000
z 0.000 0.000 -26.162
Traceless
 xyz
x 2.797 0.495 0.000
y 0.495 0.596 0.000
z 0.000 0.000 -3.393
Polar
3z2-r2-6.786
x2-y21.467
xy0.495
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.672 -0.254 0.000
y -0.254 4.777 0.000
z 0.000 0.000 4.765


<r2> (average value of r2) Å2
<r2> 74.662
(<r2>)1/2 8.641