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

using model chemistry: B2PLYP=FULLultrafine/STO-3G

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=FULLultrafine/STO-3G
 hartrees
Energy at 0K-274.090971
Energy at 298.15K 
HF Energy-274.041618
Nuclear repulsion energy128.116932
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=FULLultrafine/STO-3G
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' 3540 3540 0.22 24.29 0.75 0.86
2 A' 3357 3357 0.02 37.34 0.02 0.05
3 A' 3230 3230 29.85 39.26 0.36 0.53
4 A' 1690 1690 2.03 15.88 0.75 0.86
5 A' 1569 1569 6.69 3.14 0.73 0.85
6 A' 1488 1488 35.45 5.94 0.72 0.84
7 A' 1221 1221 24.67 3.05 0.51 0.68
8 A' 1180 1180 24.81 6.02 0.64 0.78
9 A' 920 920 0.53 6.26 0.21 0.34
10 A' 548 548 3.36 0.85 0.54 0.70
11 A' 440 440 5.30 1.50 0.68 0.81
12 A" 3537 3537 0.09 26.49 0.75 0.86
13 A" 1694 1694 0.49 13.20 0.75 0.86
14 A" 1496 1496 49.41 5.27 0.75 0.86
15 A" 1279 1279 26.97 4.96 0.75 0.86
16 A" 1048 1048 1.88 5.14 0.75 0.86
17 A" 357 357 0.00 0.46 0.75 0.86
18 A" 164 164 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14378.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14378.9 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=FULLultrafine/STO-3G
ABC
0.29744 0.27700 0.16011

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.333 0.148 0.000
C2 -0.931 1.092 0.000
H3 1.272 0.776 0.000
F4 0.333 -0.676 1.135
F5 0.333 -0.676 -1.135
H6 -1.850 0.490 0.000
H7 -0.917 1.730 0.895
H8 -0.917 1.730 -0.895

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.57781.12971.40251.40252.21022.20622.2062
C21.57782.22552.45212.45211.09931.09931.0993
H31.12972.22552.06842.06843.13562.55042.5504
F41.40252.45212.06842.26972.72322.72203.3873
F51.40252.45212.06842.26972.72323.38732.7220
H62.21021.09933.13562.72322.72321.79171.7917
H72.20621.09932.55042.72203.38731.79171.7909
H82.20621.09932.55043.38732.72201.79171.7909

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 110.013 C1 C2 H7 109.703
C1 C2 H8 109.703 C2 C1 H3 109.457
C2 C1 F4 110.589 C2 C1 F5 110.589
H3 C1 F4 109.068 H3 C1 F5 109.068
F4 C1 F5 108.032 H6 C2 H7 109.159
H6 C2 H8 109.159 H7 C2 H8 109.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.166      
2 C -0.224      
3 H 0.056      
4 F -0.117      
5 F -0.117      
6 H 0.079      
7 H 0.078      
8 H 0.078      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.170 1.184 0.000 1.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.978 0.364 0.002
y 0.364 -20.590 -0.004
z 0.002 -0.004 -22.057
Traceless
 xyz
x 1.346 0.364 0.002
y 0.364 0.427 -0.004
z 0.002 -0.004 -1.773
Polar
3z2-r2-3.547
x2-y20.612
xy0.364
xz0.002
yz-0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.725 -0.064 0.000
y -0.064 1.888 0.000
z 0.000 0.000 1.982


<r2> (average value of r2) Å2
<r2> 74.756
(<r2>)1/2 8.646