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

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-62.108379
Energy at 298.15K 
HF Energy-62.108379
Nuclear repulsion energy75.678547
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 B3LYP/CEP-121G*
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' 3130 3034 29.99 40.27 0.70 0.83
2 A' 3077 2983 46.38 127.47 0.28 0.44
3 A' 3042 2949 5.54 124.36 0.01 0.03
4 A' 1493 1447 4.67 9.97 0.75 0.86
5 A' 1440 1396 67.14 2.58 0.51 0.67
6 A' 1384 1342 10.80 1.40 0.75 0.86
7 A' 1153 1118 35.83 1.72 0.04 0.08
8 A' 1125 1090 104.04 4.84 0.74 0.85
9 A' 858 831 8.85 7.39 0.22 0.36
10 A' 553 536 6.35 1.03 0.49 0.65
11 A' 452 438 12.56 1.19 0.62 0.76
12 A" 3123 3027 20.06 59.02 0.75 0.86
13 A" 1494 1448 0.67 8.35 0.75 0.86
14 A" 1391 1349 28.68 9.19 0.75 0.86
15 A" 1139 1104 141.33 2.82 0.75 0.86
16 A" 941 912 83.90 5.20 0.75 0.86
17 A" 372 360 0.10 0.35 0.75 0.86
18 A" 233 225 0.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13198.7 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 12794.8 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 B3LYP/CEP-121G*
ABC
0.30833 0.29248 0.16825

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.327 0.169 0.000
C2 -0.913 1.049 0.000
H3 1.278 0.717 0.000
F4 0.327 -0.656 1.112
F5 0.327 -0.656 -1.112
H6 -1.808 0.418 0.000
H7 -0.918 1.684 0.893
H8 -0.918 1.684 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51981.09781.38491.38492.14942.15442.1544
C21.51982.21532.38322.38321.09531.09571.0957
H31.09782.21532.00692.00693.10052.55992.5599
F41.38492.38322.00692.22462.63622.65973.3235
F51.38492.38322.00692.22462.63623.32352.6597
H62.14941.09533.10052.63622.63621.78651.7865
H72.15441.09572.55992.65973.32351.78651.7853
H82.15441.09572.55993.32352.65971.78651.7853

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 109.487 C1 C2 H7 109.858
C1 C2 H8 109.858 C2 C1 H3 114.670
C2 C1 F4 110.175 C2 C1 F5 110.175
H3 C1 F4 107.309 H3 C1 F5 107.309
F4 C1 F5 106.863 H6 C2 H7 109.251
H6 C2 H8 109.251 H7 C2 H8 109.119
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.367      
2 C -0.546      
3 H 0.128      
4 F -0.247      
5 F -0.247      
6 H 0.187      
7 H 0.179      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.345 2.298 0.000 2.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.503 0.545 0.000
y 0.545 -22.897 0.000
z 0.000 0.000 -25.420
Traceless
 xyz
x 2.655 0.545 0.000
y 0.545 0.565 0.000
z 0.000 0.000 -3.220
Polar
3z2-r2-6.441
x2-y21.393
xy0.545
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.845 -0.085 0.000
y -0.085 3.860 0.000
z 0.000 0.000 3.848


<r2> (average value of r2) Å2
<r2> 62.193
(<r2>)1/2 7.886