Hello guys, I have a general question that I am confused. I know how to draw the orbital diagrams but I have a question when connecting the pi-bonds
in the molecule for "Allene"
Here is the Orbital Diagram for the molecule Allene
I have no problem drawing it. I have got the exact same answer, it was quite easy, since I am learning O-chem on my own for the summer before I take my course on O-chem at my university this fall.
So, back on topic, the two carbon atoms on the left and right are supposed to have hybrid orbitals sp2
, and the middle carbon is supposed to have hybrid orbital sp.
This leaves the two carbon atoms, left and right, with one
un-hybrid P-ordbital, while the middle carbon is left with two
Now, here is the confusing part that is getting me, when connecting the pi-bonds.
Since the left and right carbon has sp2
orbitals, that leaves these two carbons with a Pz
The middle carbon has sp orbital, that leaves the middle carbon with the Py
, and Pz
orbitals.Here are my questions based on what I have mentioned above:
1. Should the left carbon have the P-orbital oriented towards the z-coordinates?
2. If so, then how would you connect the pi-bonds, since you will be left with three Pz
orbitals, and one Py
Help would be MUCH appreciated! Thanks.