Frontier Molecular Orbital Theory Problem

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SUMMARY

The discussion centers on drawing the Highest Occupied Molecular Orbital (HOMO) of the hydroxide ion (HO-) and its interaction with the Lowest Unoccupied Molecular Orbital (LUMO) of hydrogen chloride (H-Cl). The user expresses confusion regarding the correct representation of the HOMO for HO-, as their interpretation differs from the textbook's answer. Key points include the need to understand the valence electron count for HO- and the implications for molecular orbital diagrams.

PREREQUISITES
  • Understanding of molecular orbital theory
  • Familiarity with valence electron counting
  • Knowledge of HOMO and LUMO concepts
  • Experience with drawing molecular orbital diagrams
NEXT STEPS
  • Research how to accurately draw molecular orbital diagrams for polyatomic ions
  • Study the valence electron configuration of hydroxide (HO-) and its implications
  • Learn about the interaction between HOMO and LUMO in chemical bonding
  • Explore examples of molecular orbital theory applications in different molecules
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Chemistry students, educators, and researchers interested in molecular orbital theory and its applications in understanding chemical interactions.

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Summary: How do I draw the HOMO of HO-. The problem asks about the HOMO of HO- interacting in different ways with the LUMO of H-Cl. I cannot proceed with the question without figuring out how to draw the HOMO of HO-. I have attached pictures.

Hello All,
I have been struggling with this problem for some time now. My teacher and book has shown us how to draw MO's with just 1 set of valence electrons, so it is a sort of condensed MO diagram (just a heads up). I am confused on how my book is drawing the HOMO (highest occupied molecular orbital) for HO-.
I have attached my work for what I think the HOMO is, but the books answer is completely different and it has completely stopped me cold in my tracks from progressing.
Any help would be much appreciated.
 

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How many valence electrons does O- have?
 

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