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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-178.991511
Energy at 298.15K-178.997099
Nuclear repulsion energy79.181452
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 B3PW91/6-31G*
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' 3146 3010 25.43      
2 A' 3068 2935 9.34      
3 A' 3051 2919 50.90      
4 A' 1553 1486 0.39      
5 A' 1525 1459 2.12      
6 A' 1455 1392 35.60      
7 A' 1421 1359 2.50      
8 A' 1152 1102 45.99      
9 A' 1097 1049 51.87      
10 A' 911 872 9.47      
11 A' 408 390 5.50      
12 A" 3157 3020 33.50      
13 A" 3094 2960 39.77      
14 A" 1509 1443 5.23      
15 A" 1312 1256 0.00      
16 A" 1204 1152 5.11      
17 A" 817 782 0.94      
18 A" 269 257 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 15073.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 14421.0 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 B3PW91/6-31G*
ABC
1.21132 0.31290 0.27442

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.556 0.000
C2 1.121 -0.459 0.000
F3 -1.226 -0.092 0.000
H4 0.045 1.198 0.889
H5 0.045 1.198 -0.889
H6 2.094 0.045 0.000
H7 1.063 -1.097 0.888
H8 1.063 -1.097 -0.888

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51241.38701.09771.09772.15552.15652.1565
C21.51242.37542.16692.16691.09601.09471.0947
F31.38702.37542.01792.01793.32292.65242.6524
H41.09772.16692.01791.77852.51382.51093.0760
H51.09772.16692.01791.77852.51383.07602.5109
H62.15551.09603.32292.51382.51381.77661.7766
H72.15651.09472.65242.51093.07601.77661.7751
H82.15651.09472.65243.07602.51091.77661.7751

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.438 C1 C2 H7 110.601
C1 C2 H8 110.601 C2 C1 F3 109.950
C2 C1 H4 111.242 C2 C1 H5 111.242
F3 C1 H4 108.042 F3 C1 H5 108.042
H4 C1 H5 108.206 H6 C2 H7 108.387
H6 C2 H8 108.387 H7 C2 H8 108.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.016      
2 C -0.544      
3 F -0.316      
4 H 0.152      
5 H 0.152      
6 H 0.169      
7 H 0.186      
8 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.598 0.632 0.000 1.719
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.123 -0.135 0.000
y -0.135 -17.789 0.000
z 0.000 0.000 -17.890
Traceless
 xyz
x -2.284 -0.135 0.000
y -0.135 1.217 0.000
z 0.000 0.000 1.066
Polar
3z2-r22.133
x2-y2-2.334
xy-0.135
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.499 -0.076 0.000
y -0.076 3.487 0.000
z 0.000 0.000 3.373


<r2> (average value of r2) Å2
<r2> 50.968
(<r2>)1/2 7.139