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

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-278.226986
Energy at 298.15K 
HF Energy-278.226986
Nuclear repulsion energy131.794623
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 B3PW91/6-31+G**
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' 3172 3045 11.45      
2 A' 3105 2981 36.06      
3 A' 3075 2952 3.03      
4 A' 1484 1425 6.38      
5 A' 1436 1378 74.79      
6 A' 1382 1327 4.85      
7 A' 1157 1111 41.53      
8 A' 1146 1100 99.56      
9 A' 874 839 8.52      
10 A' 560 538 5.89      
11 A' 460 441 13.31      
12 A" 3166 3040 7.64      
13 A" 1485 1425 1.32      
14 A" 1381 1326 26.30      
15 A" 1144 1098 166.40      
16 A" 946 908 76.73      
17 A" 380 365 0.22      
18 A" 233 224 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 13292.6 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 12762.2 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 B3PW91/6-31+G**
ABC
0.31297 0.29772 0.17108

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.167 0.000
C2 -0.900 1.041 0.000
H3 1.273 0.711 0.000
F4 0.322 -0.652 1.104
F5 0.322 -0.652 -1.104
H6 -1.797 0.418 0.000
H7 -0.903 1.676 0.890
H8 -0.903 1.676 -0.890

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50261.09521.37411.37412.13422.13762.1376
C21.50262.19782.36162.36161.09281.09291.0929
H31.09522.19781.99441.99443.08412.54112.5411
F41.37412.36161.99442.20762.61792.63883.3002
F51.37412.36161.99442.20762.61793.30022.6388
H62.13421.09283.08412.61792.61791.78181.7818
H72.13761.09292.54112.63883.30021.78181.7794
H82.13761.09292.54113.30022.63881.78181.7794

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 109.623 C1 C2 H7 109.881
C1 C2 H8 109.881 C2 C1 H3 114.656
C2 C1 F4 110.276 C2 C1 F5 110.276
H3 C1 F4 107.197 H3 C1 F5 107.197
F4 C1 F5 106.891 H6 C2 H7 109.221
H6 C2 H8 109.221 H7 C2 H8 108.995
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.430      
2 C -0.548      
3 H 0.142      
4 F -0.296      
5 F -0.296      
6 H 0.198      
7 H 0.185      
8 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.381 2.398 0.000 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.471 0.511 0.000
y 0.511 -22.990 0.000
z 0.000 0.000 -25.645
Traceless
 xyz
x 2.846 0.511 0.000
y 0.511 0.568 0.000
z 0.000 0.000 -3.414
Polar
3z2-r2-6.829
x2-y21.519
xy0.511
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.933 -0.136 0.000
y -0.136 3.991 0.000
z 0.000 0.000 4.022


<r2> (average value of r2) Å2
<r2> 72.548
(<r2>)1/2 8.518