CH3CHFOH Valence Orbitals
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Slide 44
This slide shows that the '1s' orbital is almost spherically shaped but the electron density centers around the flourine atom because it has more protons than the rest of the atoms in this molecule
[edit]Slide 45
This slide shows the '2px' orbital of the same molecule. The electron density is centered around the oxygen atom in this one because this orbital is trying to stay away from the '1s' orbital which was centered around the fluriene atom. Besides the size difference between the positive and negative electron density clouds, this orbital still shows alot of similarity to the 2px orbital. However, it is interesting that neither of these first 2 orbitals have the orbital covering the other end of the molecule. Prehaps this is because of the relative lack of protons on this side compared to the other side.
[edit]Slide 46
This slide shows the '2py' orbital of the molecule. Finally in this orbital, the orbital extends to the other side of the molecule. Maybe this is a result of this election trying to distance itself from the other electrons on the otherside. This is similar to the 2py orbital for an atom but the negative part(the blue) is split into 2. Also, the other part of the negative cloud is inside of the red (positive) cloud.
[edit]Slide 47
this slide is the same as the one above but rotated 90 degrees up along the red line of rotation.
[edit]Slide 48
This slide depicts a 1-fluoroethanol molecule (C2H5OF) using the 2spz hybrid orbital. The picture produced by the "Atom in a Box" program shows two planar nodes for the molecule, while the normal 2spz hybrid orbital has only one planar node-this demonstrates that hybrid model does not work perfectly to represent the electron densities of this model. The red (positive) density surrounds the highly-electronegative fluorine atom. This is the area of highest electron density. The negative (blue) area covers everything else.
[edit]Slide 49
This slide depicts the same 2spz hybrid orbital, but constructed oppositely from the 2spz hybrid orbital on slide 48. Note that, as is predicted for 2spz hybrid orbitals for atoms, this molecular orbital has one planar node. The molecular orbital differs from the ideal atomic 2spz orbital because it has "bulges" of high electron density around concentrated areas of protons.
[edit]Slide 50
This slide shows a 3dxy orbital for the molecule. Note that there are two planar nodes- -one that runs between the larger, narrow lobes and one that runs somewhat horizontally and separates the elongated lobes of density from the more spherical ones. Note that many critical atoms of interest- -the fluorine atom and the central carbon atom- -lie along the node. This fits the model for 3dxy orbitals for atoms, which do not have electron density near the atoms (since lower energy orbitals have electrons in those regions).
