Open Yale CoursesCHEM 125: Freshman Organic ChemistryLecture 27 - Communicating Molecular Structure in Diagrams and Words<< previous session | next session >>Overview:It is important that chemists agree on notation and nomenclature in order to communicate molecularconstitution and configuration. It is best when a diagram is as faithful as possible to the 3-dimensional shapeof a molecule, but the conventional Fischer projection, which has been indispensable in understanding sugarconfigurations for over a century, involves highly distorted bonds. Ambiguity in diagrams or words has led tomultibillion-dollar patent disputes involving popular drugs. International agreements provide descriptive,unambiguous, unique, systematic "IUPAC" names that are reasonably convenient for most organic moleculesof modest molecular weight.Problem sets/Reading assignment:Reading assignments, problem sets, PowerPoint presentations, and other resources for this lecture can be
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