Spectroscopic Determination of Unknowns Writeup

Spectroscopic Determination of Unknowns Writeup -...

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Spectroscopic Determination of Unknowns Purpose: The purpose of this experiment was to learn techniques associated with determining unknown samples. We used both Infrared and nuclear magnetic resonance spectra in order to identify both a solid and a liquid unknown. Reagent Table: Compound MP/BP Density MW Other Cumene Acetophenone Benzophenone 3-methyl-2-butanone 2,5-dimethyl-2,5-hexanediol Phenethyl Alcohol Resorcinol p-ethylphenol Benzyl Alcohol
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Geraniol Diphenyl Amine Isopropyl Acetate Dimethyl Terephthalate Ethyl Benzoate Butyl Butyrate Glutaric Acid Cinnamic Acid p-ethylbenzoic acid Maleic anhydride Coumarin
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Phenylacetylene Vanillin Procedure: Look in the laboratory notebook. Data & Observations: The IR and NMR spectra can be found on the following pages. Liquid #56 -- Cumene IR Spectra Peak Number Range cm -1 Characteristics Functional Group 1 3020-3080 Multiple Peaks Moderate Strength =CH— Aromatic 2 2961.25 Very Strong --CH 3 3 2926.46 Strong --CH 2 -- 4 Sharp Strong Peaks
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Spectroscopic Determination of Unknowns Writeup -...

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