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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-276.790992
Energy at 298.15K 
HF Energy-276.790992
Nuclear repulsion energy130.328592
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3161 3050 15.54 39.54 0.69 0.82
2 A' 3087 2979 1.40 103.61 0.02 0.04
3 A' 3080 2972 59.74 80.00 0.41 0.58
4 A' 1553 1498 4.95 20.20 0.75 0.86
5 A' 1477 1425 30.82 3.92 0.75 0.86
6 A' 1441 1390 35.45 4.38 0.75 0.86
7 A' 1185 1144 30.34 1.87 0.17 0.29
8 A' 1127 1087 84.10 5.19 0.73 0.84
9 A' 881 850 5.91 7.07 0.20 0.33
10 A' 543 524 6.96 1.06 0.57 0.73
11 A' 436 421 14.00 1.29 0.68 0.81
12 A" 3163 3052 9.51 52.60 0.75 0.86
13 A" 1559 1504 1.13 15.51 0.75 0.86
14 A" 1436 1386 39.83 12.33 0.75 0.86
15 A" 1202 1160 84.34 4.13 0.75 0.86
16 A" 994 959 40.42 5.74 0.75 0.86
17 A" 351 338 0.00 0.37 0.75 0.86
18 A" 260 251 0.13 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13466.3 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12993.6 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/3-21G
ABC
0.29838 0.29825 0.16727

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.331 0.175 0.000
C2 -0.918 1.023 0.000
H3 1.248 0.770 0.000
F4 0.331 -0.646 1.133
F5 0.331 -0.646 -1.133
H6 -1.790 0.364 0.000
H7 -0.944 1.652 0.892
H8 -0.944 1.652 -0.892

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50921.09341.39891.39892.12892.14522.1452
C21.50922.18082.37182.37181.09281.09181.0918
H31.09342.18082.03192.03193.06502.52582.5258
F41.39892.37182.03192.26602.60752.63833.3170
F51.39892.37182.03192.26602.60753.31702.6383
H62.12891.09283.06502.60752.60751.78031.7803
H72.14521.09182.52582.63833.31701.78031.7839
H82.14521.09182.52583.31702.63831.78031.7839

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 108.750 C1 C2 H7 110.088
C1 C2 H8 110.088 C2 C1 H3 112.868
C2 C1 F4 109.234 C2 C1 F5 109.234
H3 C1 F4 108.608 H3 C1 F5 108.608
F4 C1 F5 108.182 H6 C2 H7 109.164
H6 C2 H8 109.164 H7 C2 H8 109.563
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.380      
2 C -0.632      
3 H 0.187      
4 F -0.294      
5 F -0.294      
6 H 0.230      
7 H 0.211      
8 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.312 2.084 0.000 2.107
CHELPG        
AIM        
ESP -1.994 0.708 0.000 2.116


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.242 0.624 0.000
y 0.624 -22.483 0.000
z 0.000 0.000 -24.927
Traceless
 xyz
x 2.462 0.624 0.000
y 0.624 0.602 0.000
z 0.000 0.000 -3.064
Polar
3z2-r2-6.128
x2-y21.241
xy0.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.022 -0.033 0.000
y -0.033 3.039 0.000
z 0.000 0.000 3.145


<r2> (average value of r2) Å2
<r2> 73.355
(<r2>)1/2 8.565