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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-277.023765
Energy at 298.15K 
HF Energy-277.023765
Nuclear repulsion energy133.832903
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 HF/6-311G**
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' 3285 2984 75.18 37.42 0.03 0.05
2 A' 3260 2962 2.96 110.13 0.58 0.74
3 A' 3188 2896 5.90 118.62 0.02 0.04
4 A' 1602 1456 21.97 9.29 0.72 0.83
5 A' 1581 1436 70.56 2.21 0.25 0.40
6 A' 1513 1375 3.86 0.62 0.67 0.81
7 A' 1271 1154 106.72 2.03 0.51 0.68
8 A' 1244 1130 63.15 4.48 0.49 0.66
9 A' 939 853 12.01 5.99 0.21 0.35
10 A' 618 561 8.53 0.78 0.56 0.72
11 A' 507 460 17.96 0.87 0.56 0.72
12 A" 3265 2966 22.83 56.42 0.75 0.86
13 A" 1604 1458 0.04 5.93 0.75 0.86
14 A" 1535 1395 39.00 7.89 0.75 0.86
15 A" 1277 1160 178.01 2.70 0.75 0.86
16 A" 1055 959 66.82 3.86 0.75 0.86
17 A" 410 372 0.02 0.25 0.75 0.86
18 A" 256 232 0.09 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14203.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 12904.2 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 HF/6-311G**
ABC
0.32609 0.30344 0.17633

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.158 0.000
C2 -0.899 1.029 0.000
H3 1.252 0.708 0.000
F4 0.322 -0.641 1.080
F5 0.322 -0.641 -1.080
H6 -1.785 0.404 0.000
H7 -0.904 1.656 0.884
H8 -0.904 1.656 -0.884

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50051.08051.34341.34342.12202.12862.1286
C21.50052.17562.33412.33411.08371.08371.0837
H31.08052.17561.96251.96253.05282.51632.5163
F41.34342.33411.96252.15952.58872.61203.2617
F51.34342.33411.96252.15952.58873.26172.6120
H62.12201.08373.05282.58872.58871.76741.7674
H72.12861.08372.51632.61203.26171.76741.7671
H82.12861.08372.51633.26172.61201.76741.7671

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 109.342 C1 C2 H7 109.864
C1 C2 H8 109.864 C2 C1 H3 113.920
C2 C1 F4 110.199 C2 C1 F5 110.199
H3 C1 F4 107.633 H3 C1 F5 107.633
F4 C1 F5 106.980 H6 C2 H7 109.263
H6 C2 H8 109.263 H7 C2 H8 109.229
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.547      
2 C -0.297      
3 H 0.065      
4 F -0.320      
5 F -0.320      
6 H 0.115      
7 H 0.105      
8 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.292 2.370 0.000 2.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.292 0.684 0.000
y 0.684 -22.840 0.000
z 0.000 0.000 -25.443
Traceless
 xyz
x 2.849 0.684 0.000
y 0.684 0.528 0.000
z 0.000 0.000 -3.377
Polar
3z2-r2-6.754
x2-y21.548
xy0.684
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.324 -0.047 0.000
y -0.047 3.283 0.000
z 0.000 0.000 3.307


<r2> (average value of r2) Å2
<r2> 70.826
(<r2>)1/2 8.416