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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-179.001835
Energy at 298.15K-179.007340
Nuclear repulsion energy78.537551
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 BLYP/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' 3037 3020 26.91      
2 A' 2969 2953 11.81      
3 A' 2930 2914 49.82      
4 A' 1486 1478 0.41      
5 A' 1459 1451 1.13      
6 A' 1391 1383 25.79      
7 A' 1365 1357 0.70      
8 A' 1095 1089 27.66      
9 A' 1028 1022 61.27      
10 A' 864 859 10.80      
11 A' 392 390 4.23      
12 A" 3046 3029 33.32      
13 A" 2964 2948 41.47      
14 A" 1447 1439 3.09      
15 A" 1262 1255 0.05      
16 A" 1163 1157 3.96      
17 A" 789 785 0.49      
18 A" 251 249 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 14468.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 14388.7 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 BLYP/6-31G(2df,p)
ABC
1.19358 0.30727 0.26954

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.561 0.000
C2 1.131 -0.467 0.000
F3 -1.237 -0.089 0.000
H4 0.049 1.208 0.895
H5 0.049 1.208 -0.895
H6 2.107 0.043 0.000
H7 1.073 -1.108 0.893
H8 1.073 -1.108 -0.893

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.52791.39761.10561.10562.17022.17552.1755
C21.52792.39792.18542.18541.10191.10061.1006
F31.39762.39792.03432.03433.34742.67832.6783
H41.10562.18542.03431.79002.52902.53203.0997
H51.10562.18542.03431.79002.52903.09972.5320
H62.17021.10193.34742.52902.52901.78631.7863
H72.17551.10062.67832.53203.09971.78631.7860
H82.17551.10062.67833.09972.53201.78631.7860

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.173 C1 C2 H7 110.669
C1 C2 H8 110.669 C2 C1 F3 110.023
C2 C1 H4 111.158 C2 C1 H5 111.158
F3 C1 H4 108.147 F3 C1 H5 108.147
H4 C1 H5 108.099 H6 C2 H7 108.396
H6 C2 H8 108.396 H7 C2 H8 108.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C -0.343      
3 F -0.131      
4 H 0.087      
5 H 0.087      
6 H 0.104      
7 H 0.115      
8 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.466 0.543 0.000 1.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.255 -0.190 0.000
y -0.190 -18.067 0.000
z 0.000 0.000 -18.072
Traceless
 xyz
x -2.186 -0.190 0.000
y -0.190 1.096 0.000
z 0.000 0.000 1.090
Polar
3z2-r22.179
x2-y2-2.188
xy-0.190
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.899 -0.114 0.000
y -0.114 3.803 0.000
z 0.000 0.000 3.620


<r2> (average value of r2) Å2
<r2> 51.777
(<r2>)1/2 7.196