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

using model chemistry: wB97X-D/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 wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-278.354427
Energy at 298.15K 
HF Energy-278.354427
Nuclear repulsion energy132.572636
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 wB97X-D/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' 3165 3023 12.38 39.03 0.71 0.83
2 A' 3087 2949 37.55 114.85 0.23 0.37
3 A' 3074 2936 2.86 129.38 0.01 0.02
4 A' 1491 1424 5.95 6.32 0.75 0.86
5 A' 1446 1381 69.96 1.43 0.39 0.56
6 A' 1398 1335 1.75 0.70 0.70 0.82
7 A' 1172 1119 67.42 1.99 0.20 0.34
8 A' 1154 1102 74.35 3.27 0.56 0.72
9 A' 882 843 7.01 5.81 0.18 0.31
10 A' 577 551 5.39 0.86 0.42 0.59
11 A' 473 452 12.25 0.90 0.63 0.78
12 A" 3163 3021 8.19 49.50 0.75 0.86
13 A" 1491 1424 0.88 4.83 0.75 0.86
14 A" 1396 1333 20.08 5.11 0.75 0.86
15 A" 1159 1107 157.61 1.87 0.75 0.86
16 A" 959 916 69.44 3.19 0.75 0.86
17 A" 389 371 0.21 0.34 0.75 0.86
18 A" 236 226 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13354.6 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 12756.3 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 wB97X-D/Def2TZVPP
ABC
0.31796 0.29985 0.17302

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.162 0.000
C2 -0.897 1.039 0.000
H3 1.264 0.712 0.000
F4 0.321 -0.649 1.095
F5 0.321 -0.649 -1.095
H6 -1.792 0.418 0.000
H7 -0.896 1.671 0.887
H8 -0.896 1.671 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50131.09241.36191.36192.12872.13192.1319
C21.50132.18622.35172.35171.08891.08861.0886
H31.09242.18621.98521.98523.07072.52452.5245
F41.36192.35171.98522.18932.60822.62763.2842
F51.36192.35171.98522.18932.60823.28422.6276
H62.12871.08893.07072.60822.60821.77661.7766
H72.13191.08862.52452.62763.28421.77661.7732
H82.13191.08862.52453.28422.62761.77661.7732

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 109.509 C1 C2 H7 109.780
C1 C2 H8 109.780 C2 C1 H3 113.966
C2 C1 F4 110.345 C2 C1 F5 110.345
H3 C1 F4 107.456 H3 C1 F5 107.456
F4 C1 F5 106.977 H6 C2 H7 109.346
H6 C2 H8 109.346 H7 C2 H8 109.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.329      
2 C -0.208      
3 H 0.057      
4 F -0.217      
5 F -0.217      
6 H 0.089      
7 H 0.084      
8 H 0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.350 2.195 0.000 2.222
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.393 0.480 0.000
y 0.480 -22.760 0.000
z 0.000 0.000 -25.177
Traceless
 xyz
x 2.576 0.480 0.000
y 0.480 0.525 0.000
z 0.000 0.000 -3.101
Polar
3z2-r2-6.202
x2-y21.367
xy0.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.001 -0.133 0.000
y -0.133 4.043 0.000
z 0.000 0.000 4.043


<r2> (average value of r2) Å2
<r2> 71.767
(<r2>)1/2 8.472