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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-178.009466
Energy at 298.15K-178.015039
Nuclear repulsion energy78.544704
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 B1B95/3-21G
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' 3163 3026 18.35      
2 A' 3085 2951 7.02      
3 A' 3063 2930 41.03      
4 A' 1587 1518 0.79      
5 A' 1563 1495 5.07      
6 A' 1462 1399 15.05      
7 A' 1452 1389 19.65      
8 A' 1157 1107 27.26      
9 A' 1077 1031 36.72      
10 A' 912 872 4.46      
11 A' 371 355 5.99      
12 A" 3168 3031 26.74      
13 A" 3100 2966 35.77      
14 A" 1545 1478 7.22      
15 A" 1333 1275 1.13      
16 A" 1202 1150 4.32      
17 A" 848 811 2.28      
18 A" 264 252 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 15175.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 14518.0 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 B1B95/3-21G
ABC
1.18159 0.30914 0.26993

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.569 0.000
C2 1.134 -0.441 0.000
F3 -1.239 -0.123 0.000
H4 0.054 1.207 0.888
H5 0.054 1.207 -0.888
H6 2.099 0.071 0.000
H7 1.069 -1.076 0.886
H8 1.069 -1.076 -0.886

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51841.41881.09461.09462.15752.15292.1529
C21.51842.39342.16112.16111.09271.09211.0921
F31.41882.39342.05592.05593.34332.64952.6495
H41.09462.16112.05591.77592.50262.49853.0644
H51.09462.16112.05591.77592.50263.06442.4985
H62.15751.09273.34332.50262.50261.77781.7778
H72.15291.09212.64952.49853.06441.77781.7725
H82.15291.09212.64953.06442.49851.77781.7725

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.374 C1 C2 H7 110.047
C1 C2 H8 110.047 C2 C1 F3 109.103
C2 C1 H4 110.548 C2 C1 H5 110.548
F3 C1 H4 109.090 F3 C1 H5 109.090
H4 C1 H5 108.433 H6 C2 H7 108.922
H6 C2 H8 108.922 H7 C2 H8 108.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100      
2 C -0.656      
3 F -0.310      
4 H 0.202      
5 H 0.202      
6 H 0.207      
7 H 0.228      
8 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.731 0.755 0.000 1.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.397 -0.223 0.000
y -0.223 -17.709 0.000
z 0.000 0.000 -17.916
Traceless
 xyz
x -2.585 -0.223 0.000
y -0.223 1.448 0.000
z 0.000 0.000 1.137
Polar
3z2-r22.273
x2-y2-2.689
xy-0.223
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.242 -0.017 0.000
y -0.017 3.180 0.000
z 0.000 0.000 3.058


<r2> (average value of r2) Å2
<r2> 51.507
(<r2>)1/2 7.177