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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-278.281003
Energy at 298.15K 
HF Energy-278.281003
Nuclear repulsion energy132.257640
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 B3PW91/6-311G*
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' 3151 3033 22.06      
2 A' 3090 2975 48.38      
3 A' 3064 2949 4.35      
4 A' 1497 1441 6.53      
5 A' 1447 1393 83.06      
6 A' 1395 1343 3.05      
7 A' 1169 1126 44.48      
8 A' 1150 1107 100.27      
9 A' 878 846 8.41      
10 A' 568 547 5.85      
11 A' 467 449 12.95      
12 A" 3148 3031 13.96      
13 A" 1498 1443 0.54      
14 A" 1410 1357 28.75      
15 A" 1160 1117 148.94      
16 A" 956 920 70.33      
17 A" 381 367 0.11      
18 A" 247 238 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 13338.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 12840.7 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 B3PW91/6-311G*
ABC
0.31488 0.30009 0.17228

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.163 0.000
C2 -0.899 1.035 0.000
H3 1.269 0.713 0.000
F4 0.323 -0.647 1.100
F5 0.323 -0.647 -1.100
H6 -1.792 0.406 0.000
H7 -0.911 1.669 0.888
H8 -0.911 1.669 -0.888

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50051.09431.36671.36672.12832.13992.1399
C21.50052.19132.35202.35201.09181.09181.0918
H31.09432.19131.98911.98913.07582.54072.5407
F41.36672.35201.98912.20092.60602.63293.2929
F51.36672.35201.98912.20092.60603.29292.6329
H62.12831.09183.07582.60602.60601.77741.7774
H72.13991.09182.54072.63293.29291.77741.7770
H82.13991.09182.54073.29292.63291.77741.7770

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 109.358 C1 C2 H7 110.282
C1 C2 H8 110.282 C2 C1 H3 114.328
C2 C1 F4 110.144 C2 C1 F5 110.144
H3 C1 F4 107.337 H3 C1 F5 107.337
F4 C1 F5 107.262 H6 C2 H7 108.974
H6 C2 H8 108.974 H7 C2 H8 108.943
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306      
2 C -0.720      
3 H 0.184      
4 F -0.242      
5 F -0.242      
6 H 0.244      
7 H 0.236      
8 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.307 2.144 0.000 2.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.433 0.598 0.000
y 0.598 -22.686 0.000
z 0.000 0.000 -25.074
Traceless
 xyz
x 2.447 0.598 0.000
y 0.598 0.567 0.000
z 0.000 0.000 -3.014
Polar
3z2-r2-6.029
x2-y21.253
xy0.598
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.576 -0.096 0.000
y -0.096 3.525 0.000
z 0.000 0.000 3.541


<r2> (average value of r2) Å2
<r2> 71.977
(<r2>)1/2 8.484