Presentation - Spectroscopy of chiral molecules

Presentation - Spectroscopy of chiral molecules -...

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Click to edit Master subtitle style 5/24/11 Spectroscopy of chiral molecules Emily Lai May 5, 2011
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5/24/11 Chirality Chiral molecule: has a non-superimposable mirror image l R/S system
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5/24/11 Optical activity Optically active compound l Rotates beam of polarized light Dextrorotatory (+) Levorotatory (-) l May be due to: Asymmetry in the molecule Asymmetric environment
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5/24/11 Light Electric and magnetic field perpendicular to direction of propagation and to each other Normal (unpolarized) light l electric field vector in all directions
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5/24/11 Plane polarized light Electric field vector only points in one direction http://en.wikipedia.org/wiki/File:Linearly_p ol.png
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5/24/11 Circularly polarized light Right-handed circularly polarized (RCP) Left-handed circularly polarized (LCP) http://en.wikipedia.org/wiki/File:Circularly_p ol.png
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Optical Rotatory Dispersion Plane polarized light can be thought of as having 2 components of RCP and LCP light
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Presentation - Spectroscopy of chiral molecules -...

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