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Summarize this spectrum ,Using proton NMR, how could you experimentally determine that you have the trans isomer rather than cis isomer? (Consider the use of
- Summarize this spectrum ,Using proton NMR, how could you experimentally determine that you have the trans isomer rather than cis isomer? (Consider the use of coupling constants for the vinyl hydrogen)
H spectrum trans-3-nitrochalcone CHALCONE 1H/LAB_11-2/ CDC13/7-11-2016 -8.50 8.45 8.35 78.25 -8.25 -8.23 -8.23 8.25 8.15 8.04 8.05 2018- 208 7.95 f1 (ppm) 7.85 7.75 7.66 7.65 2 852 7.53 7.55 -9E+06 -BE+06 --7E+06 -6E+06 SE+06 -4E+06 -3E+06 -2E+06 1E+06 -0 -1E+06
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Detailed Explanation A spectrum acquired by proton nuclear magnetic resonance NMR analysis must include an examination of the peaks chemical shifts multiplicity and coupling patterns Vinyl hydrogen H ...
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Organic Chemistry
Authors: Graham Solomons, Craig Fryhle, Scott Snyder
11th edition
1118133579, 978-1118133576
