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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: HF/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 HF/CEP-121G
 hartrees
Energy at 0K-37.697741
Energy at 298.15K-37.703407
Nuclear repulsion energy46.622826
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 HF/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' 3251 2967 62.81      
2 A' 3222 2940 30.87      
3 A' 3160 2883 24.53      
4 A' 1657 1512 1.16      
5 A' 1636 1493 4.56      
6 A' 1566 1429 21.28      
7 A' 1524 1391 16.32      
8 A' 1213 1107 17.32      
9 A' 1126 1028 83.34      
10 A' 928 847 49.26      
11 A' 424 387 10.88      
12 A" 3301 3012 79.34      
13 A" 3261 2976 9.80      
14 A" 1618 1477 6.27      
15 A" 1389 1268 0.00      
16 A" 1279 1167 7.79      
17 A" 885 808 0.39      
18 A" 250 228 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 15845.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 14459.1 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 HF/CEP-121G
ABC
1.18099 0.30622 0.26745

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.576 0.000
C2 1.148 -0.423 0.000
F3 -1.241 -0.145 0.000
H4 -0.012 1.196 0.887
H5 -0.012 1.196 -0.887
H6 2.098 0.105 0.000
H7 1.105 -1.055 0.880
H8 1.105 -1.055 -0.880

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.52221.43541.08221.08222.15042.15752.1575
C21.52222.40582.18102.18101.08701.08431.0843
F31.43542.40582.02362.02363.34892.66602.6660
H41.08222.18102.02361.77312.53612.51333.0722
H51.08222.18102.02361.77312.53613.07222.5133
H62.15041.08703.34892.53612.53611.76291.7629
H72.15751.08432.66602.51333.07221.76291.7605
H82.15751.08432.66603.07222.51331.76291.7605

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.889 C1 C2 H7 110.613
C1 C2 H8 110.613 C2 C1 F3 108.836
C2 C1 H4 112.645 C2 C1 H5 112.645
F3 C1 H4 106.140 F3 C1 H5 106.140
H4 C1 H5 110.009 H6 C2 H7 108.561
H6 C2 H8 108.561 H7 C2 H8 108.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.104      
2 C -0.454      
3 F -0.387      
4 H 0.135      
5 H 0.135      
6 H 0.142      
7 H 0.162      
8 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.550 1.209 0.000 2.822
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.919 -0.703 0.000
y -0.703 -17.889 0.000
z 0.000 0.000 -18.046
Traceless
 xyz
x -3.952 -0.703 0.000
y -0.703 2.094 0.000
z 0.000 0.000 1.858
Polar
3z2-r23.716
x2-y2-4.030
xy-0.703
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.484 0.045 0.000
y 0.045 3.357 0.000
z 0.000 0.000 3.276


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000