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4) Suppose you are able to figure out, correctly, all of the functional groups for an unknown organic molecule using FTIR. Explain why this might not be sufficient to pin down the exact structure of the molecule. What additional information could be useful? 5) What is the basic operating principle of an ATR based sampling system? What are the advantages of an ATR-based sampling system compared to one based on direct transmittance of IR radiation in terms of sample thickness and preparation techniques? 6) When using an FTIR, which utilizes an interferometer, why do we need a Fourier transform to obtain the actual IR spectrum?

          4) Suppose you are able to figure out, correctly, all of the functional groups for an unknown organic molecule using FTIR. Explain why this might not be sufficient to pin down the exact structure of the molecule. What additional information could be useful? 5) What is the basic operating principle of an ATR based sampling system? What are the advantages of an ATR-based sampling system compared to one based on direct transmittance of IR radiation in terms of sample thickness and preparation techniques? 6) When using an FTIR, which utilizes an interferometer, why do we need a Fourier transform to obtain the actual IR spectrum?

4) Suppose you are able to figure out, correctly, all of the functional groups for an unknown organic molecule using FTIR. Explain why this might not be sufficient to pin down the exact structure of the molecule. What additional information could be useful? 5) What is the basic operating principle of an ATR based sampling system? What are the advantages of an ATR-based sampling system compared to one based on direct transmittance of IR radiation in terms of sample thickness and preparation techniques? 6) When using an FTIR, which utilizes an interferometer, why do we need a Fourier transform to obtain the actual IR spectrum?

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