5 discussion 12 points 6 spectroscopic

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Discussion (12 points) 6
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Spectroscopic Characterization (7 points) Using 1 H NMR spectroscopy , explain how you would establish a successful synthesis and isolation of your methyl benzoate product. What peaks would you anticipate if your product was impure? Construct a table containing approximate chemical shifts, integration, and multiplicity for anticipated peaks with a clear description of what peak corresponds to what proton. It is recommended to label protons A-Z on a drawing of the molecule , and include a column for the label in your table. Molecule: Proton label Chemical Shift (ppm) Integration Multiplicity 7
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(3 points) Using IR spectroscopy, explain how you would establish a successful synthesis and isolation of your methyl benzoate product. What bands would you anticipate if your product was impure? Construct a table containing wavenumber, intensity, and type of IR vibration for important parts of the molecules. IR vibration Wavenumber (cm -1 ) Intensity Writing style /4 Report total /66 This template document is to be submitted to your TA within 24h of experiment completion (Section A: 11am Tues, Section B: 6:30pm Tuesday, Sections C,D,E: 11:30 am Wednesday, Friday, and Saturday, respectively) Four (equivalent) review sessions for the final exam will be offered on December 3 rd and 4 th during the laboratory periods in MRN 301, as well as a bilingual Tuesday evening session (CRX C240 17:30-19:00) All students are welcome to attend any session. Specific details for times will be posted on Brightspace. Completion of LOCKER INVENTORY : ________________ (TA initials) 8
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  • Fall '10
  • FLYNN
  • Chemistry, Nuclear magnetic resonance

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