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

using model chemistry: wB97X-D/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-62.092192
Energy at 298.15K 
HF Energy-62.092192
Nuclear repulsion energy75.861291
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/CEP-31G*
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' 3187 3187 43.35 37.62 0.69 0.82
2 A' 3137 3137 52.71 109.19 0.29 0.45
3 A' 3100 3100 8.12 136.17 0.02 0.04
4 A' 1496 1496 6.74 12.84 0.75 0.86
5 A' 1460 1460 76.49 2.65 0.25 0.40
6 A' 1386 1386 6.94 2.34 0.37 0.54
7 A' 1167 1167 65.89 2.58 0.12 0.21
8 A' 1153 1153 70.39 6.65 0.73 0.84
9 A' 876 876 7.64 7.72 0.23 0.38
10 A' 562 562 5.66 1.48 0.55 0.71
11 A' 460 460 13.70 0.98 0.64 0.78
12 A" 3184 3184 29.04 53.93 0.75 0.86
13 A" 1498 1498 0.40 9.59 0.75 0.86
14 A" 1405 1405 33.34 6.90 0.75 0.86
15 A" 1157 1157 178.40 4.71 0.75 0.86
16 A" 955 955 65.45 6.39 0.75 0.86
17 A" 375 375 0.13 0.39 0.75 0.86
18 A" 231 231 0.06 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13394.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13394.4 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/CEP-31G*
ABC
0.31107 0.29300 0.16924

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.328 0.164 0.000
C2 -0.916 1.046 0.000
H3 1.279 0.720 0.000
F4 0.328 -0.653 1.106
F5 0.328 -0.653 -1.106
H6 -1.812 0.408 0.000
H7 -0.919 1.682 0.898
H8 -0.919 1.682 -0.898

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.52501.10121.37561.37562.15392.16002.1600
C21.52502.21902.37912.37911.10001.10021.1002
H31.10122.21902.00322.00323.10652.56192.5619
F41.37562.37912.00322.21272.63252.65583.3205
F51.37562.37912.00322.21272.63253.32052.6558
H62.15391.10003.10652.63252.63251.79621.7962
H72.16001.10022.56192.65583.32051.79621.7955
H82.16001.10022.56193.32052.65581.79621.7955

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 109.203 C1 C2 H7 109.671
C1 C2 H8 109.671 C2 C1 H3 114.370
C2 C1 F4 110.104 C2 C1 F5 110.104
H3 C1 F4 107.442 H3 C1 F5 107.442
F4 C1 F5 107.081 H6 C2 H7 109.454
H6 C2 H8 109.454 H7 C2 H8 109.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 C -0.298      
3 H 0.171      
4 F -0.176      
5 F -0.176      
6 H 0.162      
7 H 0.151      
8 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.350 2.395 0.000 2.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.013 0.699 0.000
y 0.699 -22.418 0.000
z 0.000 0.000 -24.993
Traceless
 xyz
x 2.693 0.699 0.000
y 0.699 0.585 0.000
z 0.000 0.000 -3.277
Polar
3z2-r2-6.555
x2-y21.406
xy0.699
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.405 -0.182 0.000
y -0.182 3.441 0.000
z 0.000 0.000 3.434


<r2> (average value of r2) Å2
<r2> 61.699
(<r2>)1/2 7.855