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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-176.651234
Energy at 298.15K-176.656617
Nuclear repulsion energy77.333965
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/STO-3G
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' 3483 3108 1.04      
2 A' 3312 2956 0.59      
3 A' 3219 2872 18.40      
4 A' 1690 1508 1.07      
5 A' 1660 1481 1.59      
6 A' 1559 1391 4.99      
7 A' 1514 1351 17.07      
8 A' 1234 1101 17.01      
9 A' 1127 1006 7.67      
10 A' 961 858 0.20      
11 A' 405 361 1.24      
12 A" 3487 3112 1.55      
13 A" 3313 2956 16.36      
14 A" 1674 1494 2.92      
15 A" 1376 1228 0.04      
16 A" 1236 1103 5.99      
17 A" 857 764 1.74      
18 A" 209 187 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 16157.2 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 14418.6 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/STO-3G
ABC
1.18863 0.29216 0.25778

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.153 -0.504 0.000
F3 -1.271 -0.052 0.000
H4 0.110 1.214 0.900
H5 0.110 1.214 -0.900
H6 2.129 0.005 0.000
H7 1.088 -1.143 0.894
H8 1.088 -1.143 -0.894

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.56821.41051.11851.11852.19942.20832.2083
C21.56822.46612.20202.20201.10081.10051.1005
F31.41052.46612.07862.07863.40062.74842.7484
H41.11852.20202.07861.79982.51892.55103.1186
H51.11852.20202.07861.79982.51893.11862.5510
H62.19941.10083.40062.51892.51891.78901.7890
H72.20831.10052.74842.55103.11861.78901.7881
H82.20831.10052.74843.11862.55101.78901.7881

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.750 C1 C2 H7 110.461
C1 C2 H8 110.461 C2 C1 F3 111.662
C2 C1 H4 108.942 C2 C1 H5 108.942
F3 C1 H4 110.018 F3 C1 H5 110.018
H4 C1 H5 107.141 H6 C2 H7 108.726
H6 C2 H8 108.726 H7 C2 H8 108.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 C -0.229      
3 F -0.107      
4 H 0.066      
5 H 0.066      
6 H 0.078      
7 H 0.078      
8 H 0.078      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.920 0.332 0.000 0.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.152 0.000 0.000
y 0.000 -16.826 0.000
z 0.000 0.000 -16.844
Traceless
 xyz
x -1.317 0.000 0.000
y 0.000 0.671 0.000
z 0.000 0.000 0.645
Polar
3z2-r21.291
x2-y2-1.325
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.972 0.051 0.000
y 0.051 1.755 0.000
z 0.000 0.000 1.659


<r2> (average value of r2) Å2
<r2> 52.433
(<r2>)1/2 7.241