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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B3LYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-179.056423
Energy at 298.15K-179.062007
Nuclear repulsion energy79.003596
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/6-31G*
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' 3128 3004 29.19      
2 A' 3059 2937 9.66      
3 A' 3043 2922 49.99      
4 A' 1557 1495 0.36      
5 A' 1529 1468 1.94      
6 A' 1457 1399 33.47      
7 A' 1428 1371 2.77      
8 A' 1147 1101 35.35      
9 A' 1081 1039 58.84      
10 A' 905 869 11.80      
11 A' 406 390 5.51      
12 A" 3139 3015 38.78      
13 A" 3081 2959 39.15      
14 A" 1513 1453 4.31      
15 A" 1312 1260 0.00      
16 A" 1206 1158 4.89      
17 A" 820 787 0.57      
18 A" 269 258 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 15039.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 14442.3 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/6-31G*
ABC
1.20404 0.31163 0.27309

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.124 -0.458 0.000
F3 -1.229 -0.096 0.000
H4 0.042 1.201 0.890
H5 0.042 1.201 -0.890
H6 2.098 0.047 0.000
H7 1.065 -1.096 0.888
H8 1.065 -1.096 -0.888

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51641.39281.09761.09762.15932.15942.1594
C21.51642.38092.17122.17121.09621.09481.0948
F31.39282.38092.02232.02233.32942.65522.6552
H41.09762.17122.02231.77932.51942.51423.0791
H51.09762.17122.02231.77932.51943.07912.5142
H62.15931.09623.32942.51942.51941.77741.7774
H72.15941.09482.65522.51423.07911.77741.7755
H82.15941.09482.65523.07912.51421.77741.7755

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.445 C1 C2 H7 110.542
C1 C2 H8 110.542 C2 C1 F3 109.776
C2 C1 H4 111.313 C2 C1 H5 111.313
F3 C1 H4 108.009 F3 C1 H5 108.009
H4 C1 H5 108.302 H6 C2 H7 108.435
H6 C2 H8 108.435 H7 C2 H8 108.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058      
2 C -0.471      
3 F -0.318      
4 H 0.131      
5 H 0.131      
6 H 0.145      
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
  1.593 0.635 0.000 1.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.238 -0.147 0.000
y -0.147 -17.904 0.000
z 0.000 0.000 -18.002
Traceless
 xyz
x -2.285 -0.147 0.000
y -0.147 1.217 0.000
z 0.000 0.000 1.069
Polar
3z2-r22.137
x2-y2-2.334
xy-0.147
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.500 -0.069 0.000
y -0.069 3.474 0.000
z 0.000 0.000 3.361


<r2> (average value of r2) Å2
<r2> 51.204
(<r2>)1/2 7.156