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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-278.315099
Energy at 298.15K 
HF Energy-278.315099
Nuclear repulsion energy128.638955
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 B3LYP/SDD
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' 3181 3058 33.76 24.18 0.49 0.66
2 A' 3150 3028 24.20 106.79 0.34 0.51
3 A' 3072 2953 3.57 129.90 0.01 0.02
4 A' 1501 1443 9.90 11.94 0.75 0.85
5 A' 1454 1398 49.00 2.21 0.66 0.80
6 A' 1381 1327 23.05 3.68 0.66 0.80
7 A' 1168 1123 32.17 4.38 0.40 0.57
8 A' 1104 1061 88.68 4.26 0.54 0.70
9 A' 850 817 14.15 9.11 0.16 0.28
10 A' 526 506 9.63 1.80 0.42 0.59
11 A' 425 408 15.83 1.71 0.72 0.84
12 A" 3169 3047 15.40 50.14 0.75 0.86
13 A" 1505 1447 8.08 11.20 0.75 0.86
14 A" 1363 1310 23.27 6.55 0.75 0.86
15 A" 1130 1087 102.00 5.40 0.75 0.86
16 A" 896 861 94.39 7.13 0.75 0.86
17 A" 365 350 0.17 0.63 0.75 0.86
18 A" 226 217 0.09 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13232.6 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 12720.5 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 B3LYP/SDD
ABC
0.29352 0.28772 0.16280

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.192 0.000
C2 -0.912 1.056 0.000
H3 1.284 0.724 0.000
F4 0.327 -0.668 1.142
F5 0.327 -0.668 -1.142
H6 -1.806 0.425 0.000
H7 -0.925 1.692 0.892
H8 -0.925 1.692 -0.892

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51051.09461.42971.42972.14522.14742.1474
C21.51052.22052.41082.41081.09441.09521.0952
H31.09462.22052.03872.03873.10372.57082.5708
F41.42972.41082.03872.28492.65452.68253.3574
F51.42972.41082.03872.28492.65453.35742.6825
H62.14521.09443.10372.65452.65451.78251.7825
H72.14741.09522.57082.68253.35741.78251.7839
H82.14741.09522.57083.35742.68251.78251.7839

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 109.843 C1 C2 H7 109.970
C1 C2 H8 109.970 C2 C1 H3 116.026
C2 C1 F4 110.127 C2 C1 F5 110.127
H3 C1 F4 106.981 H3 C1 F5 106.981
F4 C1 F5 106.082 H6 C2 H7 108.988
H6 C2 H8 108.988 H7 C2 H8 109.058
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.243      
2 C -0.618      
3 H 0.188      
4 F -0.247      
5 F -0.247      
6 H 0.244      
7 H 0.218      
8 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.441 3.031 0.000 3.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.938 0.696 0.000
y 0.696 -22.915 0.000
z 0.000 0.000 -26.347
Traceless
 xyz
x 3.694 0.696 0.000
y 0.696 0.727 0.000
z 0.000 0.000 -4.421
Polar
3z2-r2-8.842
x2-y21.978
xy0.696
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.083 -0.129 0.000
y -0.129 3.294 0.000
z 0.000 0.000 3.449


<r2> (average value of r2) Å2
<r2> 75.240
(<r2>)1/2 8.674