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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-178.839224
Energy at 298.15K-178.844755
HF Energy-178.839224
Nuclear repulsion energy78.656227
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3072 3022 23.78      
2 A' 2995 2945 10.64      
3 A' 2960 2911 52.22      
4 A' 1508 1483 0.33      
5 A' 1481 1457 2.18      
6 A' 1405 1382 34.58      
7 A' 1376 1353 2.31      
8 A' 1114 1096 33.57      
9 A' 1060 1042 57.72      
10 A' 884 869 9.39      
11 A' 394 388 4.98      
12 A" 3081 3030 29.20      
13 A" 3000 2950 44.75      
14 A" 1465 1441 5.21      
15 A" 1270 1249 0.07      
16 A" 1166 1147 4.38      
17 A" 795 782 1.10      
18 A" 266 261 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 14645.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 14404.2 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 PBEPBEultrafine/6-31G*
ABC
1.19352 0.30926 0.27113

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.560 0.000
C2 1.128 -0.457 0.000
F3 -1.234 -0.098 0.000
H4 0.047 1.208 0.896
H5 0.047 1.208 -0.896
H6 2.107 0.052 0.000
H7 1.070 -1.100 0.894
H8 1.070 -1.100 -0.894

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51851.39841.10721.10722.16742.16782.1678
C21.51852.38892.17842.17841.10381.10251.1025
F31.39842.38892.03702.03703.34452.66722.6672
H41.10722.17842.03701.79252.52712.52503.0952
H51.10722.17842.03701.79252.52713.09522.5250
H62.16741.10383.34452.52712.52711.78891.7889
H72.16781.10252.66722.52503.09521.78891.7878
H82.16781.10252.66723.09522.52501.78891.7878

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.495 C1 C2 H7 110.605
C1 C2 H8 110.605 C2 C1 F3 109.898
C2 C1 H4 111.160 C2 C1 H5 111.160
F3 C1 H4 108.214 F3 C1 H5 108.214
H4 C1 H5 108.091 H6 C2 H7 108.355
H6 C2 H8 108.355 H7 C2 H8 108.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C -0.513      
3 F -0.284      
4 H 0.141      
5 H 0.141      
6 H 0.159      
7 H 0.176      
8 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.496 0.574 0.000 1.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.073 -0.115 -0.001
y -0.115 -17.950 0.001
z -0.001 0.001 -18.037
Traceless
 xyz
x -2.080 -0.115 -0.001
y -0.115 1.105 0.001
z -0.001 0.001 0.975
Polar
3z2-r21.950
x2-y2-2.123
xy-0.115
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.641 -0.087 0.000
y -0.087 3.594 0.000
z 0.000 0.000 3.450


<r2> (average value of r2) Å2
<r2> 51.511
(<r2>)1/2 7.177