Ochem - linear combination of atomic orbitals

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The discussion focuses on creating a Linear Combination of Atomic Orbitals (LCAO) representation for C2H2O, specifically addressing the hybridization of the carbon and oxygen atoms. The first carbon is identified as sp2 hybridized, the second carbon as sp hybridized, and the oxygen as sp2 hybridized. The challenge lies in incorporating double bonds and lone pairs into the LCAO representation, as previous examples only illustrate single bonds. Participants are encouraged to reference external resources for guidance on hybrid orbitals and LCAO formation. The thread highlights the complexities of visualizing bonding in molecules with multiple bond types.
hamhamt
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1. Homework Statement
Draw an LCAO representation of all of the bonding orbitals for C2H2O. Be sure to clearly state the hybridization of the two carbons and the oxygen in addition to drawing the orbital representation. Also show clearly what orbital any unshared pairs occupy.


2. Homework Equations
N/A


3. The Attempt at a Solution
I started out by drawing the molecular structure and came up with CH2=C=O where the 1st carbon has an sp2 hybridization, the 2nd carbon has an sp hybridization, and the oxygen has an sp2 hybridization.

I don't know where to go from here. I have seen LCAO representations but they have only been single bonds between two hydrogen atoms like the one on this site http://www.science.uwaterloo.ca/~cch...ig/sigmah2.gif

How would I go about forming a Linear Combination of Atomic Orbitals with double bonds between the carbon-carbon and carbon-oxygen bonds, as well as the lone pairs?

Thank you!
 
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You can start by looking at http://wikis.lawrence.edu/display/CHEM/4.2+Hybrid+Orbitals+%28Jessica+Beyer%29
 

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