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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-178.960761
Energy at 298.15K-178.955943
HF Energy-179.069652
Nuclear repulsion energy79.220933
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 B3LYP/6-31G(2df,p)
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' 3116 3007 24.44      
2 A' 3043 2936 10.05      
3 A' 3016 2911 46.26      
4 A' 1527 1473 0.70      
5 A' 1498 1445 1.03      
6 A' 1434 1384 27.96      
7 A' 1402 1353 0.93      
8 A' 1137 1097 45.10      
9 A' 1078 1041 50.41      
10 A' 897 866 9.24      
11 A' 406 391 4.65      
12 A" 3124 3015 31.62      
13 A" 3054 2947 36.27      
14 A" 1483 1431 3.61      
15 A" 1302 1257 0.16      
16 A" 1198 1156 4.66      
17 A" 808 780 0.53      
18 A" 256 247 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 14889.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 14368.1 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 B3LYP/6-31G(2df,p)
ABC
1.21386 0.31282 0.27446

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.555 0.000
C2 1.119 -0.469 0.000
F3 -1.225 -0.082 0.000
H4 0.052 1.198 0.889
H5 0.052 1.198 -0.889
H6 2.092 0.034 0.000
H7 1.059 -1.105 0.887
H8 1.059 -1.105 -0.887

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51711.38131.09781.09782.15562.16032.1603
C21.51712.37612.16972.16971.09481.09371.0937
F31.38132.37612.01472.01473.31902.65562.6556
H41.09782.16972.01471.77712.51112.51403.0780
H51.09782.16972.01471.77712.51113.07802.5140
H62.15561.09483.31902.51112.51111.77541.7754
H72.16031.09372.65562.51403.07801.77541.7747
H82.16031.09372.65563.07802.51401.77541.7747

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.475 C1 C2 H7 110.474
C1 C2 H8 110.474 C2 C1 F3 110.052
C2 C1 H4 110.947 C2 C1 H5 110.947
F3 C1 H4 108.355 F3 C1 H5 108.355
H4 C1 H5 108.096 H6 C2 H7 108.451
H6 C2 H8 108.451 H7 C2 H8 108.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.028      
2 C -0.389      
3 F -0.163      
4 H 0.100      
5 H 0.100      
6 H 0.119      
7 H 0.131      
8 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.527 0.575 0.000 1.632
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 51.030
(<r2>)1/2 7.144