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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-178.979775
Energy at 298.15K-178.985368
Nuclear repulsion energy79.467061
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 B1B95/6-31G*
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' 3171 3010 23.79      
2 A' 3089 2933 8.40      
3 A' 3075 2919 48.93      
4 A' 1559 1480 0.43      
5 A' 1530 1452 1.96      
6 A' 1461 1387 36.98      
7 A' 1424 1351 2.44      
8 A' 1161 1102 55.03      
9 A' 1110 1054 43.68      
10 A' 919 872 8.84      
11 A' 406 385 5.57      
12 A" 3180 3019 31.69      
13 A" 3119 2961 37.87      
14 A" 1513 1436 5.03      
15 A" 1318 1251 0.01      
16 A" 1208 1147 5.33      
17 A" 817 776 0.81      
18 A" 270 256 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 15164.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 14395.3 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 B1B95/6-31G*
ABC
1.21631 0.31574 0.27672

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.556 0.000
C2 1.116 -0.458 0.000
F3 -1.220 -0.092 0.000
H4 0.044 1.196 0.887
H5 0.044 1.196 -0.887
H6 2.087 0.042 0.000
H7 1.055 -1.094 0.885
H8 1.055 -1.094 -0.885

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50741.38161.09471.09472.14962.14902.1490
C21.50742.36442.16092.16091.09291.09171.0917
F31.38162.36442.01142.01143.31042.63892.6389
H41.09472.16092.01141.77392.50812.50293.0668
H51.09472.16092.01141.77392.50813.06682.5029
H62.14961.09293.31042.50812.50811.77211.7721
H72.14901.09172.63892.50293.06681.77211.7705
H82.14901.09172.63893.06682.50291.77211.7705

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.502 C1 C2 H7 110.525
C1 C2 H8 110.525 C2 C1 F3 109.773
C2 C1 H4 111.291 C2 C1 H5 111.291
F3 C1 H4 108.071 F3 C1 H5 108.071
H4 C1 H5 108.228 H6 C2 H7 108.425
H6 C2 H8 108.425 H7 C2 H8 108.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.525      
3 F -0.321      
4 H 0.147      
5 H 0.147      
6 H 0.163      
7 H 0.180      
8 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.604 0.637 0.000 1.725
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.114 -0.135 0.000
y -0.135 -17.785 0.000
z 0.000 0.000 -17.883
Traceless
 xyz
x -2.280 -0.135 0.000
y -0.135 1.213 0.000
z 0.000 0.000 1.066
Polar
3z2-r22.133
x2-y2-2.329
xy-0.135
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.461 -0.080 0.000
y -0.080 3.462 0.000
z 0.000 0.000 3.349


<r2> (average value of r2) Å2
<r2> 50.655
(<r2>)1/2 7.117