lecture12 - Todays Lecture A. S. Edison University of...

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Unformatted text preview: Todays Lecture A. S. Edison University of Florida 11) Fri, Oct 27: 2D NMR Review and Summary a. 2D NMR b. NOESY c. Other Important biological experiments d. Heteronuclear correlations 2D Exchange NMR t 1 t 2 FT of t 2 FT in t 1 will give 2D frequency spectrum f2 2D FT f2 f1 2D NMR Nuclear Overhauser Effect Saturation around 4.5 ppm (e.g. no saturation) Saturation around 1.3 ppm (e.g. methyl) 1 . 5 2 . 2 . 5 3 . 3 . 5 4 . 4 . 5 5 . 5 . 5 6 . 6 . 5 7 . 7 . 5 p p m 1 . 5 2 . 2 . 5 3 . 3 . 5 4 . 4 . 5 5 . 5 . 5 6 . 6 . 5 7 . 7 . 5 p p m Ethyl Benzene NOE: Difference spectra 1 . 1 . 5 2 . 2 . 5 3 . 3 . 5 4 . 4 . 5 5 . 5 . 5 6 . 6 . 5 7 . 7 . 5 8 . p p m 3 . 3 . 5 4 . 4 . 5 5 . 5 . 5 6 . 6 . 5 7 . 7 . 5 p p m 7 . 1 7 . 1 5 7 . 2 7 . 2 5 7 . 3 7 . 3 5 p p m Ethyl Benzene NOE: Difference spectra 7.05 7.10 7.15 7.20 7.25 7.30 7.35 7.40 7.45 ppm 7.05 7.10 7.15 7.20 7.25 7.30 7.35 7.40 7.45 ppm 7.05 7.10 7.15 7.20 7.25 7.30 7.35 7.40 7.45 ppm Aromatic 1 H: no saturation Difference spectrum: saturate CH 2 Difference spectrum: saturate CH 3 Qualitative Description...
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This note was uploaded on 06/07/2011 for the course BCH 6745 taught by Professor Staff during the Spring '08 term at University of Florida.

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lecture12 - Todays Lecture A. S. Edison University of...

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