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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Vrig on January 21, 2013, 12:29:27 PM

Title: HOMO in MO diagram for carbonylic group in acetone (or entire acetone)?
Post by: Vrig on January 21, 2013, 12:29:27 PM

Does anybody know which pair of electrons are HOMO? Is it the non-bonding lone-pair or the π-orbital?
Keep in mind that the carbon and oxygen are both sp² hybridized and that the π-bond is due to p_z (if p_x and p_y are part of sp²) orbital overlap and hybridization lowers the orbital energy and oxygen is more electronegative.

Title: Re: HOMO in MO diagram for carbonylic group in acetone (or entire acetone)?
Post by: Dan on January 25, 2013, 09:45:57 AM

Here is an example (http://employees.csbsju.edu/cschaller/Reactivity/carbonyl/COMO.htm) I found by googleing: carbonyl homo.