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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-278.251326
Energy at 298.15K 
HF Energy-278.251326
Nuclear repulsion energy131.042793
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 BLYP/6-31G(2df,p)
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' 3062 3046 16.34 44.81 0.74 0.85
2 A' 2982 2966 3.84 106.99 0.01 0.02
3 A' 2940 2924 59.99 90.70 0.30 0.46
4 A' 1449 1441 2.96 13.88 0.75 0.86
5 A' 1382 1374 51.40 3.89 0.75 0.86
6 A' 1352 1345 6.52 1.39 0.67 0.80
7 A' 1128 1122 33.63 1.74 0.04 0.07
8 A' 1092 1086 84.17 4.01 0.75 0.86
9 A' 842 837 5.24 6.71 0.20 0.34
10 A' 550 547 4.04 0.83 0.43 0.60
11 A' 446 444 8.88 1.00 0.65 0.79
12 A" 3059 3042 13.70 53.95 0.75 0.86
13 A" 1451 1443 0.01 9.61 0.75 0.86
14 A" 1363 1355 22.18 8.95 0.75 0.86
15 A" 1110 1104 109.24 1.87 0.75 0.86
16 A" 919 914 62.72 4.20 0.75 0.86
17 A" 364 362 0.12 0.30 0.75 0.86
18 A" 227 226 0.06 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12858.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 12787.4 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 BLYP/6-31G(2df,p)
ABC
0.30913 0.29422 0.16902

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.162 0.000
C2 -0.913 1.043 0.000
H3 1.275 0.733 0.000
F4 0.327 -0.652 1.111
F5 0.327 -0.652 -1.111
H6 -1.811 0.409 0.000
H7 -0.922 1.682 0.895
H8 -0.922 1.682 -0.895

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.52131.10641.37681.37682.15292.16142.1614
C21.52132.20982.37572.37571.09971.09961.0996
H31.10642.20982.01212.01213.10342.55522.5552
F41.37682.37572.01212.22132.63312.65583.3210
F51.37682.37572.01212.22132.63313.32102.6558
H62.15291.09973.10342.63312.63311.79221.7922
H72.16141.09962.55522.65583.32101.79221.7898
H82.16141.09962.55523.32102.65581.79221.7898

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 109.396 C1 C2 H7 110.079
C1 C2 H8 110.079 C2 C1 H3 113.547
C2 C1 F4 110.021 C2 C1 F5 110.021
H3 C1 F4 107.749 H3 C1 F5 107.749
F4 C1 F5 107.545 H6 C2 H7 109.156
H6 C2 H8 109.156 H7 C2 H8 108.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 C -0.385      
3 H 0.068      
4 F -0.088      
5 F -0.088      
6 H 0.129      
7 H 0.120      
8 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.330 1.780 0.000 1.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.449 0.433 0.000
y 0.433 -22.489 0.000
z 0.000 0.000 -24.532
Traceless
 xyz
x 2.061 0.433 0.000
y 0.433 0.502 0.000
z 0.000 0.000 -2.563
Polar
3z2-r2-5.126
x2-y21.039
xy0.433
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.905 -0.146 0.000
y -0.146 3.866 0.000
z 0.000 0.000 3.839


<r2> (average value of r2) Å2
<r2> 72.933
(<r2>)1/2 8.540