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

using model chemistry: B2PLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/cc-pVDZ
 hartrees
Energy at 0K-278.080747
Energy at 298.15K 
HF Energy-277.869109
Nuclear repulsion energy131.879654
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 B2PLYP/cc-pVDZ
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 3046 12.99 47.79 0.73 0.84
2 A' 3100 2969 51.44 131.70 0.23 0.38
3 A' 3083 2952 4.88 100.67 0.02 0.04
4 A' 1474 1411 9.01 12.64 0.74 0.85
5 A' 1441 1380 77.32 2.38 0.45 0.62
6 A' 1384 1325 2.73 0.73 0.73 0.84
7 A' 1162 1113 53.97 1.72 0.17 0.29
8 A' 1159 1110 75.37 4.67 0.66 0.80
9 A' 880 843 9.79 5.75 0.22 0.37
10 A' 566 542 6.08 0.93 0.54 0.70
11 A' 465 445 12.86 1.08 0.65 0.79
12 A" 3179 3045 9.86 59.42 0.75 0.86
13 A" 1477 1415 0.01 8.80 0.75 0.86
14 A" 1394 1335 32.16 9.54 0.75 0.86
15 A" 1164 1114 143.80 2.59 0.75 0.86
16 A" 960 919 55.94 3.72 0.75 0.86
17 A" 378 362 0.05 0.40 0.75 0.86
18 A" 240 230 0.10 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13343.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12778.7 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 B2PLYP/cc-pVDZ
ABC
0.31302 0.29877 0.17158

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.165 0.000
C2 -0.904 1.034 0.000
H3 1.272 0.728 0.000
F4 0.324 -0.648 1.103
F5 0.324 -0.648 -1.103
H6 -1.797 0.394 0.000
H7 -0.915 1.671 0.896
H8 -0.915 1.671 -0.896

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50461.10171.37011.37012.13402.14572.1457
C21.50462.19722.35672.35671.09911.09871.0987
H31.10172.19722.00132.00133.08712.54412.5441
F41.37012.35672.00132.20592.60832.63683.3021
F51.37012.35672.00132.20592.60833.30212.6368
H62.13401.09913.08712.60832.60831.79181.7918
H72.14571.09872.54412.63683.30211.79181.7911
H82.14571.09872.54413.30212.63681.79181.7911

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 109.092 C1 C2 H7 110.039
C1 C2 H8 110.039 C2 C1 H3 114.027
C2 C1 F4 110.038 C2 C1 F5 110.038
H3 C1 F4 107.628 H3 C1 F5 107.628
F4 C1 F5 107.222 H6 C2 H7 109.227
H6 C2 H8 109.227 H7 C2 H8 109.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.374      
2 C -0.072      
3 H 0.013      
4 F -0.229      
5 F -0.229      
6 H 0.054      
7 H 0.045      
8 H 0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.308 2.048 0.000 2.071
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.560 0.577 0.005
y 0.577 -22.714 -0.010
z 0.005 -0.010 -24.945
Traceless
 xyz
x 2.270 0.577 0.005
y 0.577 0.539 -0.010
z 0.005 -0.010 -2.808
Polar
3z2-r2-5.617
x2-y21.154
xy0.577
xz0.005
yz-0.010


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.522 -0.086 -0.000
y -0.086 3.461 0.002
z -0.000 0.002 3.477


<r2> (average value of r2) Å2
<r2> 72.260
(<r2>)1/2 8.501