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

using model chemistry: PBE1PBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-278.130437
Energy at 298.15K 
HF Energy-278.130437
Nuclear repulsion energy132.767861
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/cc-pVTZ
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' 3159 3035 11.95 40.59 0.71 0.83
2 A' 3071 2951 35.69 166.47 0.14 0.24
3 A' 3069 2949 7.81 77.13 0.04 0.08
4 A' 1477 1419 6.41 6.78 0.74 0.85
5 A' 1435 1379 77.46 1.84 0.38 0.55
6 A' 1384 1330 0.56 0.55 0.64 0.78
7 A' 1172 1126 92.78 2.39 0.53 0.69
8 A' 1155 1110 42.45 2.58 0.36 0.53
9 A' 882 848 5.81 5.22 0.20 0.33
10 A' 574 551 4.82 0.82 0.48 0.65
11 A' 470 452 12.19 0.88 0.63 0.77
12 A" 3157 3034 8.11 50.95 0.75 0.86
13 A" 1478 1421 0.41 4.92 0.75 0.86
14 A" 1389 1335 21.34 5.86 0.75 0.86
15 A" 1164 1119 158.51 2.02 0.75 0.86
16 A" 959 921 51.23 2.81 0.75 0.86
17 A" 383 368 0.20 0.35 0.75 0.86
18 A" 230 221 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13302.8 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 12784.0 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/cc-pVTZ
ABC
0.31848 0.30141 0.17372

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.162 0.000
C2 -0.896 1.034 0.000
H3 1.265 0.716 0.000
F4 0.321 -0.646 1.093
F5 0.321 -0.646 -1.093
H6 -1.788 0.407 0.000
H7 -0.900 1.666 0.888
H8 -0.900 1.666 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49731.09441.35981.35982.12362.13112.1311
C21.49732.18422.34532.34531.09021.08981.0898
H31.09442.18421.98571.98573.06872.52532.5253
F41.35982.34531.98572.18702.59912.62323.2808
F51.35982.34531.98572.18702.59913.28082.6232
H62.12361.09023.06872.59912.59911.77811.7781
H72.13111.08982.52532.62323.28081.77811.7754
H82.13111.08982.52533.28082.62321.77811.7754

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 109.304 C1 C2 H7 109.919
C1 C2 H8 109.919 C2 C1 H3 113.964
C2 C1 F4 110.249 C2 C1 F5 110.249
H3 C1 F4 107.523 H3 C1 F5 107.523
F4 C1 F5 107.051 H6 C2 H7 109.299
H6 C2 H8 109.299 H7 C2 H8 109.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.346      
2 C -0.303      
3 H 0.032      
4 F -0.200      
5 F -0.200      
6 H 0.114      
7 H 0.106      
8 H 0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.339 2.094 0.000 2.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.472 0.495 0.000
y 0.495 -22.712 0.000
z 0.000 0.000 -25.005
Traceless
 xyz
x 2.387 0.495 0.000
y 0.495 0.527 0.000
z 0.000 0.000 -2.913
Polar
3z2-r2-5.826
x2-y21.240
xy0.495
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.966 -0.142 0.000
y -0.142 3.938 0.000
z 0.000 0.000 3.917


<r2> (average value of r2) Å2
<r2> 71.536
(<r2>)1/2 8.458