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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-176.442310
Energy at 298.15K-176.447652
Nuclear repulsion energy77.084125
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 PBEPBE/STO-3G
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' 3418 3123 1.21      
2 A' 3248 2967 0.68      
3 A' 3122 2852 26.62      
4 A' 1651 1508 1.06      
5 A' 1618 1479 2.17      
6 A' 1512 1381 6.88      
7 A' 1475 1348 17.89      
8 A' 1206 1102 21.75      
9 A' 1097 1003 9.81      
10 A' 936 855 0.43      
11 A' 399 364 0.89      
12 A" 3424 3128 1.73      
13 A" 3207 2930 22.29      
14 A" 1634 1493 3.37      
15 A" 1343 1227 0.00      
16 A" 1208 1104 5.41      
17 A" 834 762 2.44      
18 A" 210 192 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 15770.9 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 14408.3 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 PBEPBE/STO-3G
ABC
1.18548 0.28987 0.25611

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.556 0.000
C2 1.155 -0.509 0.000
F3 -1.277 -0.046 0.000
H4 0.121 1.217 0.905
H5 0.121 1.217 -0.905
H6 2.136 0.003 0.000
H7 1.091 -1.151 0.898
H8 1.091 -1.151 -0.898

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.57141.41191.12691.12692.20612.21652.2165
C21.57142.47532.20622.20621.10621.10581.1058
F31.41192.47532.09042.09043.41262.76292.7629
H41.12692.20622.09041.80942.51992.55913.1304
H51.12692.20622.09041.80942.51993.13042.5591
H62.20611.10623.41262.51992.51991.79691.7969
H72.21651.10582.76292.55913.13041.79691.7964
H82.21651.10582.76293.13042.55911.79691.7964

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.730 C1 C2 H7 110.561
C1 C2 H8 110.561 C2 C1 F3 112.027
C2 C1 H4 108.572 C2 C1 H5 108.572
F3 C1 H4 110.350 F3 C1 H5 110.350
H4 C1 H5 106.804 H6 C2 H7 108.649
H6 C2 H8 108.649 H7 C2 H8 108.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.049      
2 C -0.244      
3 F -0.087      
4 H 0.067      
5 H 0.067      
6 H 0.082      
7 H 0.082      
8 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.815 0.282 0.000 0.863
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.936 0.033 0.000
y 0.033 -16.808 0.000
z 0.000 0.000 -16.815
Traceless
 xyz
x -1.124 0.033 0.000
y 0.033 0.567 0.000
z 0.000 0.000 0.557
Polar
3z2-r21.115
x2-y2-1.127
xy0.033
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.006 0.057 0.000
y 0.057 1.756 0.000
z 0.000 0.000 1.651


<r2> (average value of r2) Å2
<r2> 52.675
(<r2>)1/2 7.258