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• 1 media/kisscc0-atomic-orbital-computer-icons-chemistry-orbitals-5b7136eca13a03.6431040415341462846604.png 2020-01-28T16:26:21-08:00 Lecture 3: Molecular Orbitals and Resonance 12 image_header 2020-03-21T15:30:09-07:00 Objectives ans Skills
  
  KEY INFORMATION SUMMARY
  
  
  HERE you can find extra resources to help you with this lecture!
  
  PROBLEMS
  
  Problem 3.1: Resonance Structures
  1. Determine whether the following pairs of compounds are resonance structures or structural isomers. SOLUTION
  2. Insert curved arrows to show movement of electrons between those pairs that are resonance structures. SOLUTION
  
  If you made some mistakes or want to practice more, review the concepts that gave you trouble and work on this extra problem. If you're good, move to the problem below ;) 
  
  Problem 3.2: Resonance Contributing Structures
  
  Draw all the possible resonance structures and predict the best contributing one for each of the following species (include curved arrows). SOLUTION
  If you made some mistakes or want to practice more, review the concepts that gave you trouble and work on this extra problem. If you're good, move to the problem below ;) 
  
  Problem 3.3: p-Systems
  
  For each of the following species, draw the resonance hybrid and p-orbital view, determine the number of p AOs, p MOs, p-electrons and MOs for the whole molecule. SOLUTION
  If you made some mistakes or want to practice more, review the concepts that gave you trouble and work on this extra problem. If you're good, move to the problem below ;) 
  
  Problem 3.4: UV-Vis Spectroscopy
  
  Explain why benzene (C₆H₆) has a higher l_max than CH₂=CH₂. SOLUTION
  
  If you made some mistakes or want to practice more, review the concepts that gave you trouble and work on this extra problem. If you're good, move to the next lecture ;)