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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-278.155254
Energy at 298.15K 
HF Energy-278.155254
Nuclear repulsion energy132.713472
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 HSEh1PBE/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' 3158 3035 12.23 40.54 0.71 0.83
2 A' 3072 2952 39.23 140.28 0.19 0.31
3 A' 3069 2949 4.08 104.28 0.01 0.03
4 A' 1478 1420 6.18 6.76 0.74 0.85
5 A' 1435 1379 76.53 1.86 0.39 0.56
6 A' 1385 1331 0.57 0.57 0.63 0.77
7 A' 1169 1123 84.32 2.18 0.45 0.62
8 A' 1154 1109 51.63 2.78 0.42 0.60
9 A' 882 847 6.22 5.24 0.20 0.33
10 A' 573 550 4.94 0.83 0.47 0.64
11 A' 470 451 12.18 0.89 0.63 0.77
12 A" 3157 3034 8.28 51.26 0.75 0.86
13 A" 1479 1422 0.49 4.98 0.75 0.86
14 A" 1389 1335 20.76 5.81 0.75 0.86
15 A" 1160 1115 155.67 2.01 0.75 0.86
16 A" 957 920 55.34 2.86 0.75 0.86
17 A" 383 368 0.20 0.36 0.75 0.86
18 A" 231 222 0.07 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13298.7 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 12781.3 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 HSEh1PBE/cc-pVTZ
ABC
0.31802 0.30135 0.17357

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.163 0.000
C2 -0.896 1.034 0.000
H3 1.264 0.716 0.000
F4 0.321 -0.646 1.094
F5 0.321 -0.646 -1.094
H6 -1.788 0.407 0.000
H7 -0.901 1.666 0.887
H8 -0.901 1.666 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.49691.09381.36111.36112.12302.13062.1306
C21.49692.18412.34592.34591.08981.08951.0895
H31.09382.18411.98611.98613.06802.52542.5254
F41.36112.34591.98612.18882.59912.62353.2814
F51.36112.34591.98612.18882.59913.28142.6235
H62.12301.08983.06802.59912.59911.77741.7774
H72.13061.08952.52542.62353.28141.77741.7748
H82.13061.08952.52543.28142.62351.77741.7748

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 109.306 C1 C2 H7 109.929
C1 C2 H8 109.929 C2 C1 H3 114.018
C2 C1 F4 110.245 C2 C1 F5 110.245
H3 C1 F4 107.505 H3 C1 F5 107.505
F4 C1 F5 107.036 H6 C2 H7 109.290
H6 C2 H8 109.290 H7 C2 H8 109.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.352      
2 C -0.292      
3 H 0.032      
4 F -0.203      
5 F -0.203      
6 H 0.110      
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
  -0.340 2.106 0.000 2.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.476 0.496 0.000
y 0.496 -22.725 0.000
z 0.000 0.000 -25.035
Traceless
 xyz
x 2.404 0.496 0.000
y 0.496 0.531 0.000
z 0.000 0.000 -2.934
Polar
3z2-r2-5.869
x2-y21.249
xy0.496
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.966 -0.143 0.000
y -0.143 3.940 0.000
z 0.000 0.000 3.921


<r2> (average value of r2) Å2
<r2> 71.585
(<r2>)1/2 8.461