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

using model chemistry: PBE1PBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-278.145834
Energy at 298.15K 
HF Energy-278.145834
Nuclear repulsion energy132.716599
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/Def2TZVPP
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' 3162 3162 11.23 38.87 0.71 0.83
2 A' 3077 3077 38.46 122.56 0.21 0.35
3 A' 3071 3071 2.61 124.84 0.01 0.02
4 A' 1477 1477 6.46 6.19 0.75 0.86
5 A' 1435 1435 75.62 1.55 0.42 0.59
6 A' 1384 1384 0.66 0.61 0.69 0.82
7 A' 1169 1169 93.37 2.57 0.45 0.62
8 A' 1154 1154 43.50 2.57 0.35 0.52
9 A' 881 881 6.19 5.49 0.19 0.32
10 A' 573 573 4.83 0.84 0.46 0.63
11 A' 469 469 12.24 0.87 0.63 0.77
12 A" 3160 3160 7.32 49.05 0.75 0.86
13 A" 1478 1478 0.58 4.58 0.75 0.86
14 A" 1386 1386 19.69 5.49 0.75 0.86
15 A" 1158 1158 163.47 1.97 0.75 0.86
16 A" 956 956 55.31 3.00 0.75 0.86
17 A" 383 383 0.25 0.33 0.75 0.86
18 A" 231 231 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13302.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13302.5 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/Def2TZVPP
ABC
0.31842 0.30099 0.17356

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.162 0.000
C2 -0.896 1.036 0.000
H3 1.266 0.714 0.000
F4 0.321 -0.647 1.094
F5 0.321 -0.647 -1.094
H6 -1.790 0.412 0.000
H7 -0.898 1.668 0.887
H8 -0.898 1.668 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49731.09411.36081.36082.12492.13062.1306
C21.49732.18512.34682.34681.09021.08981.0898
H31.09412.18511.98531.98533.07012.52572.5257
F41.36082.34681.98532.18722.60202.62463.2818
F51.36082.34681.98532.18722.60203.28182.6246
H62.12491.09023.07012.60202.60201.77801.7780
H72.13061.08982.52572.62463.28181.77801.7749
H82.13061.08982.52573.28182.62461.77801.7749

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 109.410 C1 C2 H7 109.886
C1 C2 H8 109.886 C2 C1 H3 114.063
C2 C1 F4 110.306 C2 C1 F5 110.306
H3 C1 F4 107.451 H3 C1 F5 107.451
F4 C1 F5 106.965 H6 C2 H7 109.297
H6 C2 H8 109.297 H7 C2 H8 109.047
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.300      
2 C -0.237      
3 H 0.051      
4 F -0.200      
5 F -0.200      
6 H 0.100      
7 H 0.093      
8 H 0.093      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.358 2.163 0.000 2.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.488 0.472 0.000
y 0.472 -22.816 0.000
z 0.000 0.000 -25.190
Traceless
 xyz
x 2.515 0.472 0.000
y 0.472 0.523 0.000
z 0.000 0.000 -3.038
Polar
3z2-r2-6.077
x2-y21.328
xy0.472
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.039 -0.143 0.000
y -0.143 4.060 0.000
z 0.000 0.000 4.047


<r2> (average value of r2) Å2
<r2> 71.648
(<r2>)1/2 8.465