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

using model chemistry: B1B95/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 B1B95/Def2TZVPP
 hartrees
Energy at 0K-278.341824
Energy at 298.15K 
HF Energy-278.341824
Nuclear repulsion energy132.920187
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 B1B95/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' 3173 3173 12.08 38.96 0.71 0.83
2 A' 3092 3092 37.81 116.42 0.23 0.38
3 A' 3083 3083 2.53 131.84 0.01 0.02
4 A' 1483 1483 5.83 6.37 0.75 0.86
5 A' 1438 1438 73.79 1.55 0.42 0.59
6 A' 1388 1388 0.86 0.64 0.70 0.82
7 A' 1170 1170 92.34 2.52 0.43 0.60
8 A' 1155 1155 46.21 2.77 0.38 0.55
9 A' 882 882 6.55 5.66 0.19 0.32
10 A' 569 569 5.02 0.83 0.47 0.64
11 A' 466 466 12.71 0.87 0.63 0.77
12 A" 3171 3171 8.00 49.85 0.75 0.86
13 A" 1484 1484 0.51 4.77 0.75 0.86
14 A" 1389 1389 19.91 5.49 0.75 0.86
15 A" 1159 1159 163.32 1.93 0.75 0.86
16 A" 957 957 57.80 3.12 0.75 0.86
17 A" 379 379 0.19 0.33 0.75 0.86
18 A" 231 231 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13334.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13334.9 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 B1B95/Def2TZVPP
ABC
0.31934 0.30192 0.17410

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.164 0.000
C2 -0.896 1.033 0.000
H3 1.262 0.713 0.000
F4 0.321 -0.646 1.092
F5 0.321 -0.646 -1.092
H6 -1.784 0.408 0.000
H7 -0.899 1.663 0.885
H8 -0.899 1.663 -0.885

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49491.09011.35971.35972.11912.12562.1256
C21.49492.18172.34342.34341.08661.08631.0863
H31.09012.18171.98161.98163.06212.52152.5215
F41.35972.34341.98162.18402.59512.61983.2755
F51.35972.34341.98162.18402.59513.27552.6198
H62.11911.08663.06212.59512.59511.77281.7728
H72.12561.08632.52152.61983.27551.77281.7698
H82.12561.08632.52153.27552.61981.77281.7698

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 109.326 C1 C2 H7 109.862
C1 C2 H8 109.862 C2 C1 H3 114.216
C2 C1 F4 110.263 C2 C1 F5 110.263
H3 C1 F4 107.464 H3 C1 F5 107.464
F4 C1 F5 106.859 H6 C2 H7 109.340
H6 C2 H8 109.340 H7 C2 H8 109.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.297      
2 C -0.269      
3 H 0.067      
4 F -0.205      
5 F -0.205      
6 H 0.111      
7 H 0.102      
8 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.360 2.195 0.000 2.224
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.412 0.474 0.000
y 0.474 -22.765 0.000
z 0.000 0.000 -25.176
Traceless
 xyz
x 2.559 0.474 0.000
y 0.474 0.528 0.000
z 0.000 0.000 -3.087
Polar
3z2-r2-6.175
x2-y21.354
xy0.474
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.013 -0.143 0.000
y -0.143 4.038 0.000
z 0.000 0.000 4.027


<r2> (average value of r2) Å2
<r2> 71.431
(<r2>)1/2 8.452