W2013CHM2311 Part 5 Notes

Otherwise the orbital would be nonsymmetric which is

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Unformatted text preview: answer the following ques0ons: 1.  Classify each of the molecular orbitals in the previous slide as symmetric or an0symmetric with respect to a central mirror plane perpendicular to the axis of the carbon atoms. Do you detect any trends in the symmetry? 2.  Count the number of nodes in each molecular orbital (not including the C- C axis). Recall: a node occurs when the wave func0on changes sign. Do you detect any trends in the number of nodes? 3.  Which of the molecular orbitals will be occupied by electrons (and how many) and which will be empty? Iden0fy the HOMO and LUMO for each molecule. “Short- Cuts” for Construc0ng π- MO Diagrams for π- Conjugated Systems 1.  The number of π molecular orbitals is equal to the number of carbon atoms in the conjugated π- system. 2.  Every molecular orbital must be either symmetric or...
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This note was uploaded on 03/28/2014 for the course CHM 2311 taught by Professor Richardson during the Winter '09 term at University of Ottawa.

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