Fischer_Projection explanation.pdf

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Department
Chemistry
Course
CHE 118A
Professor
Vahid Eskandari
Semester
Fall

Description
Fischer Projectionrepresentation of a 3D molecule as a flat structure where a tetrahedral carbon is represented as two crossedlinesvertical line is going back behindof the plane of the pagecarbonCsubstituenthorizonal line is coming out of the plane of the pageCHOCHOCHOOHHOHHOHHOHC2HCHOHCHOH22RglyceraldehydeFischer projectionManipulation of Fischer Projections1Fischer Projection can be rotated by 180onlyCHOCHOH2OHH180rotationHHOCHOH2CHOstillRglyceraldehydeRglyceraldehydeRotation by 90or 90270invert the stereochemistry90rotationCHOHOHHCHOHOHC2Because of the convention of the CHOH2OHFischer Projection ie the Sglyceraldehydevertical lines are going back and Rglyceraldehydethe horizonal lines are coming forward the 90 rotated Fisher projection is actually the enantiomer of the originalCHOHOHHCHOHOHC2CHOHOH2These two compounds are enantiomers
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