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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-178.023081
Energy at 298.15K-178.028648
Nuclear repulsion energy78.339435
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 B3PW91/3-21G*
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' 3148 3020 19.36      
2 A' 3072 2947 7.23      
3 A' 3048 2924 43.35      
4 A' 1585 1521 0.84      
5 A' 1561 1498 5.00      
6 A' 1461 1402 14.80      
7 A' 1452 1393 20.25      
8 A' 1155 1108 26.44      
9 A' 1071 1027 38.26      
10 A' 907 870 4.72      
11 A' 376 360 5.84      
12 A" 3154 3026 27.68      
13 A" 3084 2959 37.92      
14 A" 1544 1481 7.28      
15 A" 1334 1280 1.23      
16 A" 1201 1153 4.22      
17 A" 850 815 2.47      
18 A" 262 251 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 15131.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 14517.4 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 B3PW91/3-21G*
ABC
1.18164 0.30660 0.26810

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.568 0.000
C2 1.138 -0.443 0.000
F3 -1.244 -0.120 0.000
H4 0.056 1.208 0.890
H5 0.056 1.208 -0.890
H6 2.104 0.074 0.000
H7 1.077 -1.079 0.888
H8 1.077 -1.079 -0.888

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.52181.42151.09721.09722.16112.15912.1591
C21.52182.40362.16472.16471.09531.09461.0946
F31.42152.40362.06012.06013.35342.66352.6635
H41.09722.16472.06011.77912.50432.50453.0714
H51.09722.16472.06011.77912.50433.07142.5045
H62.16111.09533.35342.50432.50431.78151.7815
H72.15911.09462.66352.50453.07141.78151.7766
H82.15911.09462.66353.07142.50451.78151.7766

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.262 C1 C2 H7 110.145
C1 C2 H8 110.145 C2 C1 F3 109.447
C2 C1 H4 110.435 C2 C1 H5 110.435
F3 C1 H4 109.079 F3 C1 H5 109.079
H4 C1 H5 108.333 H6 C2 H7 108.878
H6 C2 H8 108.878 H7 C2 H8 108.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.106      
2 C -0.671      
3 F -0.307      
4 H 0.204      
5 H 0.204      
6 H 0.212      
7 H 0.232      
8 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.726 0.744 0.000 1.879
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.411 -0.217 0.000
y -0.217 -17.725 0.000
z 0.000 0.000 -17.933
Traceless
 xyz
x -2.582 -0.217 0.000
y -0.217 1.447 0.000
z 0.000 0.000 1.136
Polar
3z2-r22.271
x2-y2-2.686
xy-0.217
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.262 -0.015 0.000
y -0.015 3.193 0.000
z 0.000 0.000 3.073


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000