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

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-277.925099
Energy at 298.15K 
HF Energy-277.782254
Nuclear repulsion energy129.366472
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/6-31G
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' 3194 3194 23.88 25.63 0.49 0.65
2 A' 3165 3165 25.98 114.75 0.38 0.55
3 A' 3097 3097 2.53 101.82 0.02 0.03
4 A' 1549 1549 6.02 17.83 0.75 0.86
5 A' 1494 1494 33.21 3.71 0.74 0.85
6 A' 1432 1432 30.42 3.58 0.75 0.86
7 A' 1203 1203 31.41 2.54 0.33 0.50
8 A' 1131 1131 77.46 5.21 0.67 0.80
9 A' 879 879 15.30 8.13 0.17 0.29
10 A' 540 540 11.25 1.24 0.46 0.63
11 A' 434 434 16.32 1.79 0.72 0.84
12 A" 3185 3185 9.78 56.02 0.75 0.86
13 A" 1550 1550 4.04 15.61 0.75 0.86
14 A" 1415 1415 32.31 8.69 0.75 0.86
15 A" 1180 1180 76.89 5.15 0.75 0.86
16 A" 956 956 77.00 6.82 0.75 0.86
17 A" 372 372 0.02 0.53 0.75 0.86
18 A" 256 256 0.11 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13515.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13515.8 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/6-31G
ABC
0.29419 0.29372 0.16471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.188 0.000
C2 -0.912 1.037 0.000
H3 1.272 0.731 0.000
F4 0.327 -0.656 1.143
F5 0.327 -0.656 -1.143
H6 -1.792 0.390 0.000
H7 -0.935 1.669 0.890
H8 -0.935 1.669 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50191.08931.42061.42062.12872.14012.1401
C21.50192.20452.38882.38881.09211.09211.0921
H31.08932.20452.03012.03013.08222.55742.5574
F41.42062.38882.03012.28562.62492.65803.3365
F51.42062.38882.03012.28562.62493.33652.6580
H62.12871.09213.08222.62492.62491.77851.7785
H72.14011.09212.55742.65803.33651.77851.7795
H82.14011.09212.55743.33652.65801.77851.7795

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 109.276 C1 C2 H7 110.180
C1 C2 H8 110.180 C2 C1 H3 115.673
C2 C1 F4 109.614 C2 C1 F5 109.614
H3 C1 F4 107.233 H3 C1 F5 107.233
F4 C1 F5 107.115 H6 C2 H7 109.029
H6 C2 H8 109.029 H7 C2 H8 109.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.471      
2 C -0.463      
3 H 0.155      
4 F -0.341      
5 F -0.341      
6 H 0.186      
7 H 0.167      
8 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.391 2.663 0.000 2.691
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.240 0.640 0.005
y 0.640 -22.924 -0.008
z 0.005 -0.008 -26.037
Traceless
 xyz
x 3.240 0.640 0.005
y 0.640 0.715 -0.008
z 0.005 -0.008 -3.955
Polar
3z2-r2-7.909
x2-y21.684
xy0.640
xz0.005
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.106 -0.055 -0.000
y -0.055 3.223 0.002
z -0.000 0.002 3.413


<r2> (average value of r2) Å2
<r2> 74.507
(<r2>)1/2 8.632