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

using model chemistry: TPSSh/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 TPSSh/cc-pVTZ
 hartrees
Energy at 0K-278.417185
Energy at 298.15K 
HF Energy-278.417185
Nuclear repulsion energy131.905950
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 TPSSh/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' 3132 3033 17.68 39.40 0.72 0.84
2 A' 3059 2962 38.90 132.56 0.22 0.36
3 A' 3048 2951 4.47 119.40 0.01 0.02
4 A' 1494 1447 3.99 6.88 0.75 0.86
5 A' 1430 1385 58.48 1.82 0.50 0.67
6 A' 1390 1346 5.45 1.03 0.51 0.67
7 A' 1157 1120 30.01 1.49 0.02 0.04
8 A' 1131 1096 106.98 3.65 0.71 0.83
9 A' 865 838 7.80 5.81 0.19 0.31
10 A' 556 538 5.16 0.93 0.46 0.63
11 A' 454 440 11.77 1.00 0.65 0.78
12 A" 3126 3027 12.83 54.01 0.75 0.86
13 A" 1495 1448 0.72 5.81 0.75 0.86
14 A" 1379 1335 17.76 5.27 0.75 0.86
15 A" 1137 1101 129.67 1.94 0.75 0.86
16 A" 939 909 81.82 3.30 0.75 0.86
17 A" 370 358 0.14 0.39 0.75 0.86
18 A" 225 218 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13194.1 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 12775.9 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 TPSSh/cc-pVTZ
ABC
0.31356 0.29804 0.17139

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.168 0.000
C2 -0.903 1.038 0.000
H3 1.269 0.715 0.000
F4 0.323 -0.650 1.103
F5 0.323 -0.650 -1.103
H6 -1.793 0.408 0.000
H7 -0.908 1.671 0.888
H8 -0.908 1.671 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50431.09281.37281.37282.13022.13622.1362
C21.50432.19672.36042.36041.09021.09051.0905
H31.09282.19671.99351.99353.07792.53822.5382
F41.37282.36041.99352.20512.61072.63583.2963
F51.37282.36041.99352.20512.61073.29632.6358
H62.13021.09023.07792.61072.61071.77941.7794
H72.13621.09052.53822.63583.29631.77941.7769
H82.13621.09052.53823.29632.63581.77941.7769

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 109.346 C1 C2 H7 109.805
C1 C2 H8 109.805 C2 C1 H3 114.596
C2 C1 F4 110.168 C2 C1 F5 110.168
H3 C1 F4 107.358 H3 C1 F5 107.358
F4 C1 F5 106.858 H6 C2 H7 109.375
H6 C2 H8 109.375 H7 C2 H8 109.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.361      
2 C -0.221      
3 H 0.026      
4 F -0.209      
5 F -0.209      
6 H 0.091      
7 H 0.081      
8 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.342 2.124 0.000 2.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.012 -0.168 0.000
y -0.168 4.007 0.000
z 0.000 0.000 3.993


<r2> (average value of r2) Å2
<r2> 72.267
(<r2>)1/2 8.501