Resonance Delocalization and Curved Arrow Notation скачать в хорошем качестве

Resonance Delocalization and Curved Arrow Notation

This video is a lecture that continues the discussion on organic notation by focusing on resonance delocalization. You will learn how to explain electron delocalization using molecular orbital theory, draw resonance structures using curved arrow notation, and interpret resonance hybrids. Learning Objectives: – Explain electron delocalization via molecular orbital theory. – Draw resonance structures using curved arrow notation. – Draw and interpret resonance hybrids. We also cover fundamental resonance patterns to help you recognize and draw resonance contributors for a variety of molecules. Timestamps 00:00 Introduction 00:41 Revisiting Molecular Orbital Theory for Pi Systems 01:17 Describing Pi Molecular Orbitals in a Localized Pi System 03:17 Electron Delocalization in the Allylic Cation System 04:09 Molecular Orbitals of the Allylic Cation System 07:56 Resonance: Explaining Delocalization 09:09 Resonance Contributors and the Resonance Hybrid 09:47 Resonance as Electron Delocalization and Stabilization 10:46 Introducing Curved Arrow and Resonance Arrow Notation 12:31 Pattern 1: Pi Electrons Adjacent to an Empty P-Orbital 15:24 Pattern 2: Lone Pair Adjacent to an Empty P-Orbital 17:52 Pattern 3: Lone Pair Adjacent to a Pi Bond 20:21 Pattern 4: Polar Pi Bond 21:52 Pattern 5: Contiguous Pi Bonds in a Ring (Benzene) 22:49 Summary and Conclusion