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

using model chemistry: wB97X-D/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 wB97X-D/aug-cc-pVDZ
 hartrees
Energy at 0K-278.266450
Energy at 298.15K 
HF Energy-278.266450
Nuclear repulsion energy131.797721
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 wB97X-D/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' 3172 3037 13.54 34.51 0.71 0.83
2 A' 3105 2973 31.95 110.10 0.22 0.36
3 A' 3070 2939 3.18 148.28 0.01 0.01
4 A' 1464 1402 8.25 4.16 0.74 0.85
5 A' 1430 1369 67.85 0.68 0.28 0.44
6 A' 1370 1311 1.18 0.66 0.50 0.67
7 A' 1153 1104 20.03 2.61 0.08 0.15
8 A' 1151 1101 110.29 3.40 0.64 0.78
9 A' 874 837 9.76 6.54 0.12 0.21
10 A' 563 539 5.78 0.84 0.29 0.45
11 A' 463 443 12.73 0.84 0.63 0.78
12 A" 3167 3032 9.28 47.02 0.75 0.86
13 A" 1463 1401 0.82 2.93 0.75 0.86
14 A" 1368 1309 16.33 3.64 0.75 0.86
15 A" 1136 1087 157.12 1.99 0.75 0.86
16 A" 941 901 76.85 2.53 0.75 0.86
17 A" 383 367 0.28 0.42 0.75 0.86
18 A" 230 221 0.05 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13251.2 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 12685.4 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 wB97X-D/aug-cc-pVDZ
ABC
0.31399 0.29704 0.17127

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.167 0.000
C2 -0.900 1.043 0.000
H3 1.275 0.714 0.000
F4 0.322 -0.653 1.101
F5 0.322 -0.653 -1.101
H6 -1.801 0.418 0.000
H7 -0.895 1.679 0.893
H8 -0.895 1.679 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50331.09901.37311.37312.13722.13642.1364
C21.50332.19992.36272.36271.09651.09651.0965
H31.09902.19991.99751.99753.09002.53772.5377
F41.37312.36271.99752.20232.61992.63853.3011
F51.37312.36271.99752.20232.61993.30112.6385
H62.13721.09653.09002.61992.61991.79111.7911
H72.13641.09652.53772.63853.30111.79111.7870
H82.13641.09652.53773.30112.63851.79111.7870

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 109.589 C1 C2 H7 109.527
C1 C2 H8 109.527 C2 C1 H3 114.531
C2 C1 F4 110.370 C2 C1 F5 110.370
H3 C1 F4 107.289 H3 C1 F5 107.289
F4 C1 F5 106.631 H6 C2 H7 109.520
H6 C2 H8 109.520 H7 C2 H8 109.143
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.159      
2 C 0.274      
3 H -0.298      
4 F -0.441      
5 F -0.441      
6 H -0.092      
7 H -0.080      
8 H -0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.368 2.331 0.000 2.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.477 0.514 0.000
y 0.514 -22.964 0.000
z 0.000 0.000 -25.554
Traceless
 xyz
x 2.782 0.514 0.000
y 0.514 0.551 0.000
z 0.000 0.000 -3.333
Polar
3z2-r2-6.666
x2-y21.487
xy0.514
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.323 -0.192 0.000
y -0.192 4.388 0.000
z 0.000 0.000 4.371


<r2> (average value of r2) Å2
<r2> 72.506
(<r2>)1/2 8.515