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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-278.119107
Energy at 298.15K 
HF Energy-278.119107
Nuclear repulsion energy131.298658
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 PBEPBEultrafine/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' 3074 3053 11.67 43.84 0.73 0.84
2 A' 2989 2969 2.22 146.66 0.01 0.01
3 A' 2970 2950 45.24 111.78 0.27 0.43
4 A' 1431 1421 4.82 7.20 0.75 0.85
5 A' 1373 1364 68.69 2.51 0.57 0.72
6 A' 1335 1326 1.09 0.87 0.53 0.70
7 A' 1119 1111 27.80 1.48 0.04 0.07
8 A' 1101 1093 102.86 3.30 0.73 0.85
9 A' 846 840 6.57 5.45 0.21 0.34
10 A' 548 544 4.64 0.98 0.46 0.63
11 A' 449 445 10.31 1.06 0.66 0.80
12 A" 3071 3050 8.63 54.66 0.75 0.86
13 A" 1432 1422 0.87 5.88 0.75 0.86
14 A" 1329 1320 16.43 6.39 0.75 0.86
15 A" 1097 1090 130.68 1.92 0.75 0.86
16 A" 904 898 72.56 3.10 0.75 0.86
17 A" 369 367 0.26 0.45 0.75 0.86
18 A" 223 221 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12829.9 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12741.4 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 PBEPBEultrafine/cc-pVTZ
ABC
0.30970 0.29644 0.16982

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.166 0.000
C2 -0.901 1.043 0.000
H3 1.277 0.719 0.000
F4 0.323 -0.653 1.110
F5 0.323 -0.653 -1.110
H6 -1.800 0.414 0.000
H7 -0.905 1.681 0.893
H8 -0.905 1.681 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50571.10291.37961.37962.13752.14412.1441
C21.50572.20222.36812.36811.09731.09721.0972
H31.10292.20222.00652.00653.09242.54602.5460
F41.37962.36812.00652.21982.62272.64573.3114
F51.37962.36812.00652.21982.62273.31142.6457
H62.13751.09733.09242.62272.62271.78971.7897
H72.14411.09722.54602.64573.31141.78971.7863
H82.14411.09722.54603.31142.64571.78971.7863

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 109.399 C1 C2 H7 109.930
C1 C2 H8 109.930 C2 C1 H3 114.290
C2 C1 F4 110.240 C2 C1 F5 110.240
H3 C1 F4 107.322 H3 C1 F5 107.322
F4 C1 F5 107.124 H6 C2 H7 109.289
H6 C2 H8 109.289 H7 C2 H8 108.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.320      
2 C -0.293      
3 H 0.024      
4 F -0.183      
5 F -0.183      
6 H 0.110      
7 H 0.103      
8 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.351 2.029 0.000 2.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.750 0.453 0.000
y 0.453 -22.897 0.000
z 0.000 0.000 -25.134
Traceless
 xyz
x 2.266 0.453 0.000
y 0.453 0.545 0.000
z 0.000 0.000 -2.811
Polar
3z2-r2-5.621
x2-y21.148
xy0.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.191 -0.178 0.000
y -0.178 4.158 0.000
z 0.000 0.000 4.132


<r2> (average value of r2) Å2
<r2> 72.893
(<r2>)1/2 8.538