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

using model chemistry: B2PLYP/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 B2PLYP/6-31+G**
 hartrees
Energy at 0K-278.086542
Energy at 298.15K 
HF Energy-277.877189
Nuclear repulsion energy131.555786
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/6-31+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' 3197 3045 14.27 35.01 0.68 0.81
2 A' 3152 3002 29.87 113.23 0.29 0.45
3 A' 3100 2953 3.27 124.50 0.01 0.02
4 A' 1511 1439 5.45 8.43 0.75 0.86
5 A' 1460 1391 64.89 1.73 0.46 0.63
6 A' 1406 1339 9.10 1.13 0.72 0.83
7 A' 1173 1117 21.48 1.89 0.09 0.17
8 A' 1147 1093 112.08 4.58 0.63 0.77
9 A' 878 837 12.40 6.96 0.18 0.30
10 A' 560 534 7.13 0.85 0.39 0.56
11 A' 460 438 13.64 1.13 0.67 0.80
12 A" 3190 3038 8.51 55.96 0.75 0.86
13 A" 1511 1439 1.65 6.27 0.75 0.86
14 A" 1395 1329 26.37 5.81 0.75 0.86
15 A" 1148 1093 142.02 2.09 0.75 0.86
16 A" 949 904 100.24 4.80 0.75 0.86
17 A" 383 365 0.14 0.34 0.75 0.86
18 A" 239 227 0.06 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13430.2 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 12790.9 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/6-31+G**
ABC
0.31086 0.29751 0.17050

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.173 0.000
C2 -0.904 1.039 0.000
H3 1.271 0.711 0.000
F4 0.323 -0.652 1.108
F5 0.323 -0.652 -1.108
H6 -1.792 0.407 0.000
H7 -0.909 1.670 0.889
H8 -0.909 1.670 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50201.09051.38061.38062.12782.13342.1334
C21.50202.19972.36432.36431.09001.09021.0902
H31.09052.19971.99581.99583.07812.54232.5423
F41.38062.36431.99582.21552.61142.63773.3008
F51.38062.36431.99582.21552.61143.30082.6377
H62.12781.09003.07812.61142.61141.77931.7793
H72.13341.09022.54232.63773.30081.77931.7774
H82.13341.09022.54233.30082.63771.77931.7774

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 109.321 C1 C2 H7 109.753
C1 C2 H8 109.753 C2 C1 H3 115.169
C2 C1 F4 110.136 C2 C1 F5 110.136
H3 C1 F4 107.149 H3 C1 F5 107.149
F4 C1 F5 106.712 H6 C2 H7 109.397
H6 C2 H8 109.397 H7 C2 H8 109.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.514      
2 C -0.491      
3 H 0.126      
4 F -0.330      
5 F -0.330      
6 H 0.179      
7 H 0.166      
8 H 0.166      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.374 2.476 0.000 2.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.754 0.558 0.005
y 0.558 -23.320 -0.008
z 0.005 -0.008 -26.061
Traceless
 xyz
x 2.937 0.558 0.005
y 0.558 0.587 -0.008
z 0.005 -0.008 -3.524
Polar
3z2-r2-7.048
x2-y21.567
xy0.558
xz0.005
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.881 -0.130 -0.000
y -0.130 3.969 0.001
z -0.000 0.001 4.023


<r2> (average value of r2) Å2
<r2> 72.911
(<r2>)1/2 8.539